Best charge rate for a deep cycle battery 10
That combination of events ignites the gas, blows the battery case cover off and spatters electrolyte all over the engine compartment. The types of metals and the electrolyte used will determine the output of a cell. Also should I disconnect the house battery when the rv is parked for a couple of weeks?
House RV Battery
If the digital voltmeter indicates I have a 15 foot bass boat, first boat ever and do not know a lot about the difference in batteries and all I know is it looks like a sealed car battery. Avoid overfillingespecially in hot climates, because heat will cause the electrolyte to expand and overflow. China smartphones online shopping The starting chassis battery in a motorhome is the same type as used in a car, though often with a larger CCA Cold Cranking Amps rating because the engine is larger. These chargers are designed to charge lead acid and other types of batteries based on computer-generated algorithms. But I still have a couple of questions because some of those other writings contradict each other and your material in a couple of ways.
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While the gassing can work itself out of the battery vents, some manufacturers do not have large inner cell connectors to withstand that type of charge. Within a group, the ampere-hour or RC ratings, warranty and battery type will vary in models of the same brand or from brand to brand.
Marine Batteries
BatteryStuff Tech Pretty much any of our motorcycle chargers will work. Over time, the battery loses capacity and cannot be recharged. Converter, 40 amp, has never fully charged the three units with the ignition on; nor even the house and genset batteries with the ignition off. How is a battery made?
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10.02.2018 - I have 1 triple panel 45 watt charging system from harbor freight I use to keep the batteries up daily as I will discharge accordingly at night. Although this answer does conclude that wiring in series will prolong battery life compared to the parallel setup, Trojan says that either setup is fine. Good luck on whatever systems you run and happy travels. The larger the pores or warmer the temperature, the better the diffusion. With a battery load tester, apply a load of at least one half the battery's CCA rating for 15 seconds and wait five to ten minutes.
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30.01.2018 - Recharging slowly and keeping your battery well maintained are the best ways to extend the life of your battery. Starting Used as a deep cycle. The exception to this is the free replacement warranty and represents the risk that the manufacturer is willing to assume. I have a basic folding camper. I have monitored the charging cycle and see no evidence of a 3 step process whereby the regulated voltage is dropped back as the battery approaches full charge.
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Dead batteries almost always occur at the most inopportune times: How is a battery made? A twelve-volt car battery is made up of six cells, each producing 2. Each cell is made up of an element containing positive plates that are all connected together and negative plates, which are also all connected together.
The plates [ 2 in the diagram below], within a cell, alternate with a positive plate, a negative plate and so on. In Europe, using solid lead positive Plante plates is popular. After the curing of the plates, they are made up into cells, and the cells are inserted into a high-density tough polypropylene or hard rubber case [ 1 in the diagram above].
The cells are connected to the terminals [ 5 in the diagram above], and the case is covered and then filled with a dilute sulfuric acid electrolyte [ 4 in the diagram above].
The electrolyte is replaced and the battery is given a finishing charge. Two important considerations in battery construction are porosity and diffusion. Porosity is the pits and tunnels in the plate that allows the sulphuric acid to get to the interior of the plate.
Diffusion is the spreading, intermingling and mixing of one fluid with another. When you are using your battery, the fresh acid needs to be in contact with the plate material and the water generated needs to be carried away from the plate.
The larger the pores or warmer the temperature, the better the diffusion. How does a battery work? A more detailed description of how a battery works can be found on the BCI web site at http: A battery is created by alternating two different metals such as Lead Dioxide PbO 2 , the positive plates, and Sponger lead Pb, the negative plates.
The types of metals and the electrolyte used will determine the output of a cell. A typical lead-acid battery produces approximately 2. The chemical action between the metals and the electrolyte creates the electrical energy.
Energy flows from the battery as soon as there is an electrical load, for example, a starter motor that completes a circuit between the positive and negative terminals.
The electrical current flows as charged portions of acid ions between the battery plates and as electrons through the external circuit. The action of the lead-acid storage battery is determined by chemicals used, State-of-Charge, temperature, porosity, diffusion, and load determine the action of the lead-acid storage battery.
Why do batteries die? In cold climates, a battery normally ages as the active positive plate material sheds or flakes off due to the expansion and contraction that occurs during the discharge and recharge cycles.
A brown sediment, sludge or mud builds up in the bottom of the case and can short the cell out. In hot climates, additional causes of failure are positive grid growth, positive grid metal corroding in the electrolyte, negative grid shrinks, plates buckling, and loss of water.
Deep discharges, heat, vibration, over charging, under charging and non-usage accelerate this aging process. Another major cause of premature battery failure is lead sulfation.
Using tap water to refill batteries can produce calcium sulfate, which also will coat the plates and fill pores. Recharging a sulfated battery is like trying to wash your hands with gloves on. Most of the defective batteries returned to manufacturers during free placement warranty periods are good.
This suggests that most sellers of new batteries do not know how to or fail to take the time to properly load test or recharge them. There are six simple steps in testing a deep cycle battery: A hydrometer is a float type device used to determine the state-of-charge by measuring the specific gravity of the electrolyte in each cell.
It is a very accurate way of determining a battery's state-of-charge and its weak or dead cells. To troubleshoot charging or electrical systems or if you have a sealed battery, you will need a digital voltmeter with 0.
Analog voltmeters are not accurate enough to measure the millivolt differences of a battery's state-of-charge or the output of the charging system. The purchase of a battery load tester is optional; if you use a golf cart or electric trolling motor every day, buy one.
Visually inspect for obvious problems. For example, is there a loose or broken alternator belt, electrolyte levels below the top of the plates, corroded or swollen cables, corroded terminal clamps, dirty or wet battery top, loose hold-down clamps, loose cable terminals, or leaking or damaged battery case?
If the electrolyte levels are low in non-sealed batteries, allow the battery to cool and add distilled water to the level indicated by the battery manufacturer. The plates need to be covered at all times.
Avoid overfilling, especially in hot climates, because heat will cause the electrolyte to expand and overflow. If the battery has a difference of. Surface charge is the uneven mixture of sulfuric acid and water within the surface of the plates as a result of charging or discharging.
It will make a weak battery appear good or a good battery appear bad. You need to eliminate the surface charge by one of the following methods: Allow the battery to sit for four to twelve hours to allow for the surface charge to dissipate.
With a battery load tester, apply a load of at least one half the battery's CCA rating for 15 seconds and wait five to ten minutes. The table assumes that a 1. For other electrolyte temperatures, use the Temperature Compensation table below to adjust the Open Circuit Voltage or Specific Gravity readings.
Electrolyte temperature compensation, depending on the battery manufacturer's recommendations, will vary. This is why using a temperature compensated hydrometer is highly recommended and more accurate than other means.
For non-sealed batteries, check the specific gravity in each cell with a hydrometer and average the readings. For sealed batteries, measure the Open Circuit Voltage across the battery terminals with an accurate digital voltmeter.
This is the only way you can determine the State-of-Charge. Some batteries have a built-in hydrometer, which only measures the State-of-Charge in one of its six cells. If the built-in indicator is clear or light yellow, then the battery has a low electrolyte level and should be refilled and recharged before proceeding.
If sealed, the battery is toast and should be replaced. You should replace the battery, if one or more of the following conditions occur: If there is a. If you know that a battery has spilled or bubbled over and the electrolyte has been replaced with water, you can replace the old electrolyte with new electrolyte and go back to Step 3.
It is cheaper to replace the electrolyte than to buy a new battery. If digital voltmeter indicates 0 volts, you have an open cell. If the digital voltmeter indicates A shorted cell is caused by plates touching, sediment mud build-up or treeing between the plates.
Normally a discharge rate that will discharge a battery in 20 hours can be used. If the battery passes the load test, you should recharge it as soon as possible to restore it to peak performance and to prevent lead sulfation.
Ampere-Hour or Reserve Capacity Rating. The most important consideration in buying a deep cycle battery is the Ampere-Hour AH or Reserve Capacity or Reserve Minutes rating that will meet or exceed your requirements and how much weight you can carry.
Most deep cycle batteries are rated in discharge rates of amps, 20 amps, or 8 amps. The higher the discharge, the lower the capacity due to the Peukert Effect and the internal resistance of the battery.
More ampere-hours or RC are better in every case. Within a BCI group size, the battery with higher ampere-hours or RC will tend to have longer lives and weigh more because of thicker plates and more lead.
The following graph shows the effects of temperature on the capacity of a battery: If more ampere-hours are required, you can connect two or more new and identical volt batteries in parallel.
You can also connect two larger new and identical six-volt batteries in series by attaching the negative terminal of the first battery to the positive terminal of the second battery.
If you connect two volt batteries in parallel that are identical in type, age and capacity, you can potentially double the total capacity. If you connect two that are not the same type, you will either overcharge the smaller of the two, or you will undercharge the larger of the two.
The recommended parallel and series connections are as follows: When connected this way, the batteries will discharge and recharge equally. When connecting in series or parallel and to prevent recharging problems, do not mix old and new batteries or ones of different types.
Cable lengths should be kept short and cable must be sized large enough to prevent significant voltage drop; there should be a maximum of 0. They are not designed for deep cycle discharges. Deep cycle and marine batteries are designed for prolonged discharges at lower current and not for high current discharges.
The plates in a car battery are more porous and thinner than in deep cycle batteries and use sponges or expanded metal grids instead of solid lead. A deep cycle battery will typically outlast two to ten car batteries when used in deep cycle applications.
A dual or starting marine battery is a compromise between a car and a deep cycle battery that is specially designed for marine applications. A deep cycle or dual marine battery will work as a starting battery if it can produce enough current to start the engine, but not as well as a car battery.
For saltwater applications, AGM or gel cell batteries are highly recommended to prevent chorine gas. For RVs, a car battery is normally used to start the engine and a deep cycle battery is used to power the RV accessories.
The batteries are connected to a diode isolator. When the RV's charging system is running, both batteries are automatically recharged. The two most common types of deep cycle batteries are flooded also known as wet or liquid electrolyte cell and valve regulated VR.
These types are divided into Marine and RV batteries. Flooded cell deep cycle batteries are divided, like their car battery counterparts, into low maintenance the most common and maintenance free or sealed, which is based on their plate formulation.
However, they are more prone to deep discharge dead battery failures due to increased shedding of active plate material and development of a barrier layer between the active plate material and the grid metal.
Further, if sealed, they tend to have a shorter life in hot climates because lost water cannot be replaced. Automobile industry liability lawyers prefer this type of battery because consumers are less likely to be injured.
Finally, maintenance free batteries are generally more expensive than low maintenance batteries. VRLA batteries are spill proof, so they can be used in semi-enclosed areas, are totally maintenance free, and have a longer shelf life.
Their greatest disadvantage is the high initial cost two to three times but arguably can have an overall lower total cost of ownership due to a longer lifetime and no watering labor costs, only if they are properly maintained and recharged.
Within a group, the ampere-hour or RC ratings, warranty and battery type will vary in models of the same brand or from brand to brand. You can also find BCI size information online at http: Generally, batteries are sold by model, and some of the group numbers are sold for the same price.
This means that for the same money you can potentially buy a physically larger battery with more ampere-hou r or RC than the battery you are replacing. Be sure that the replacement battery will fit, the cables will correct to the correct terminals, and that the terminals will not touch anything else.
There are six types of battery terminals: L terminal is used on some European cars, motorcycles, lawn and garden devices, snowmobiles, and other light duty vehicles.
Stud terminals are used on heavy duty and deep cycle batteries. Terminal locations and polarity will vary. Battery manufacturers or distributors will often private label their batteries for large chain stores.
Ownership, branding, Web addresses and telephone numbers are subject to change. Exide is the largest battery manufacturer in the world, and Johnson Controls is the largest manufacturer in the Americas.
Determining the freshness of a battery is sometimes difficult. Never buy a wet lead-acid battery that is more than three months old because by then it has started to sulfate unless it has periodically been recharged this is not the usual practice of many retailers or it is dry charged.
Dealers will often place their older batteries in storage racks so they will sell first. The new batteries can often be found in the rear of the rack or in a storage room.
The date of manufacture is stamped on the case or printed on a sticker. Some of the manufacturer's date coding techniques are as follows: Dates are stamped on the cover near one post.
The first number is the year. The second character is the month A-M, skipping I. The last two characters indicate geographic areas. Douglas uses the letters of their name to indicate the year of manufacture and the digits for the month.
Interstate and some Sears DieHard. Usually on a sticker or hot-stamped on the side of the case. The number next to the letter is the year of shipment. Exide some Sears non-Gold DieHards. The fourth or fifth character is the month.
The following numeric character is the year. Stamp on post, 2 Months after manufacture date. If you cannot determine the date code, ask the dealer or contact the manufacturer.
Like bread, fresher is definitely better and does matter. As with tire warranties, battery warranties are not necessarily indicative of the quality or cost over the life of the battery. Most manufacturers will prorate warranties based on the list price of the bad battery, so if a battery failed half way or more through its warranty period, buying a new battery outright might cost you less than paying the difference under a prorated warranty.
The exception to this is the free replacement warranty and represents the risk that the manufacturer is willing to assume. A longer free replacement warranty period is better.
Thoroughly wash and clean the old battery, battery terminals and case or tray with warm water to minimize problems from acid or corrosion. Heavy corrosion can be neutralized with a mixture of one pound of baking soda to one gallon of warm water.
Wear safety goggles and, using a stiff brush, brush away from yourself. Also, mark the cables so you do not forget which one to reconnect. Turn off all electrical switches in the vehicle and shut off the ignition switch.
Disable any alarm systems. Secure the negative cable so that it cannot "spring" loose and make electrical contact. If the hold down bracket is severely corroded, replace it. Dispose of the old battery by exchanging it when you buy your new one or by taking it to a recycling center.
Please remember that batteries contain large amounts of harmful lead and acid, so please dispose of your old battery properly for safety and to protect our fragile environment. After removing the old battery, be sure that the battery tray or box and cable terminals or connectors are clean.
Auto parts stores sell a cheap wire brush that will allow you to clean the inside of terminal clamps and the terminals. If the terminals, cables or hold-down brackets are severely corroded, replace them.
Corroded terminals or swollen cables will significantly reduce starting capability. Use paraffin oil-soaked felt washer pads found at auto parts stores or thinly coat the terminal, terminal clamps and exposed metal around the battery with a high temperature grease or petroleum jelly Vaseline to prevent corrosion.
Do not use the felt washers between the mating conductive surfaces with side terminal batteries. Use of stainless steel and other metal washers have also caused problems with electrolysis and high resistance.
It can even cause the battery to explode. Another instance would be a marine deep cycle battery rated at amp hours. Some folks wanting quick recharge should look for a charger with more amps. The most important thing is to make sure you have enough charger power to do the job you require in the time you allocate.
Other types of chargers and the reasons you might need them:. Choose Your Battery Charger. Full Name Should contain only letters, numbers, and ' -. Email Address - will not be published Email address should be formatted user domain.
Subscribe to comments with RSS. Paul I have a 2 amp 12 volt battery sealed lead acid can I use a charger that have 4 amps 12 volt auto shut off. BatteryStuff Tech That would be a little hot for that small of a battery.
A lot of the reviews mention float chargers, which works for storage — but I need something that will ensure the machine is able to run at night, and can be charged via wall socket during the day.
For reference this is what the CPAP machine says under the electrical version of the manual, and this is where I get a little confused though I have had others tell me they use this battery and inverter with their cpap just fine — but they use a 3 panel 45 watt solar charger which is unfortunately out of my price range.
Any help or explanations are appreciated, as I am brand new to trying to figure this stuff out. The first thing you need to figure out is how your going to run a CPAP machine off a battery. Are you going to use the inverter?
Using an inverter is not my first choice as they draw more out of the battery, than going straight off the battery. If you look at your 3rd power rating it tells you the CPAP Machine can run directly off a battery with a rating of 12VDC, which is a 12 volt battery, and it will pull 6.
Now you may think that is more amperage than using the inverter, which draws VAC 2. However, when you calculate that back to the battery it is pulling So going off the battery is a better choice!
You will most likely have to contact the CPAP manufacturer for a 12v accessory meant to run the machine directly off the battery, but it is far more efficient. My suggestion would be to use two calculators to first select your correct battery.
Then plug the DC amp draw into the Calculator Sizing a 12 Volt Battery to a Load to figure out what AH rated battery you need based off how many hours you plan to sleep. So if you end up with a AH rated battery you can use a 25 Amp Charger.
Charging any faster could hurt the battery, and we only recommend smart chargers for charging. I understand that when connecting the same batteries in parallel, it will have the same voltage but will double up in the Ah.
Would connecting the battery in parallel be able to handle 8 Amp charger? Meaning that the rating max charge current will be 10 amps instead of 5 amps??
Or would the max rating current to charge is still 5 amps and can not handle it. I guess it might be better for the battery life but was wondering if it could handle it. BatteryStuff Tech Please keep in mind we only recommend interconnecting batteries that are of the same age, capacity, chemistry, and if you plan to employ them as a battery pack.
We however do not recommend connecting batteries together that you are not going to employ as a battery pack. The answer to your questions is yes, assuming these are lead acid batteries.
The reason this works is the charge is spread out among both batteries, and not just one. I have a Schumacher charger that has a setting for this type battery. I noticed that the wires next to the clamps got very hot.
My goal is to take this battery with me camping and use it with my CPAP machine. I dont have it in front of me but its 12 Volt. About the size of a large car battery. BatteryStuff Tech Charging cables heating up could be the result of a couple of factors.
If the battery is also heating up that could elude to a bad battery not being able to accept the charge, and it might be time to replace the battery. If the battery is not heating up, but the wire at the connection point is, i would try cleaning the terminals and ensuring you have a good connection.
Is the electrolyte, absorbed into the glass matting, in these AGM batteries subject to stratification in the same way that the electrolyte in a flooded wet battery is? The 1st step is an automatic desulfation step.
This is accomplished by the application of Destratification occurs when the turbulence causes the electrolyte to be mixed and rendering the SG uniform throughout the depth of the cell.
My obvious next question: The other main reason to equalize a battery is to cause the sulfation to dissolve back into the electroylte, however not all AGM battery manufacturers recommend this processes, as some AGM batteries are not meant to withstand this type of charge.
The process of equalizing a battery causes the battery to heat up and gas. While the gassing can work itself out of the battery vents, some manufacturers do not have large inner cell connectors to withstand that type of charge.
Lifeline Battery is one of the manufacturers we carry that does promote equalizing their batteries. In the end you need to contact the manufacturer of your battery to see what they recommend. John I have 6 2v Ahr agm batteries hookup for 12 v, how many watt solar panel will I need to charger my battery with a MPPT solar controller?
BatteryStuff Tech It depends on what you are trying to accomplish. If your just looking to maintain a fully charged battery pack with no draw coming off the batteries I would generally recommend a panel similar to our Solarland 12v 30 Watt Panel for your capacity.
This ensures that a good charge is going to the battery pack daily, and it can get the batteries top off fairly quickly if your have a long stretch of bad weather. If your trying to design a system to supplement energy coming off the batteries then I suggest reading our article Solar Systems the Right Way.
This article will get you started in the right direction. The normal consumption is probably only w. We have a honda EUi generator which isw rated w. We run this to charge the batteries. We need a regulated charger of the maximum we can run from this generator, 40amp?
What is the maximum we could run? Great site by the way, we have nothing similar in the UK which is where w are based, but the electrical info is international!
Once you find a brand that you intend to use look to their AC Input ratings. The Wattage rating has to be below your continuous run rating of your generator. I hope that helps! BatteryStuff Tech I would recommend a 12v 10 Amp charger for that battery.
If you look into our 12 Volt Smart Battery Chargers: You will find mountable, and portable chargers depending on your need. If you require further information feel free to contact our Tech Department.
Trevor Hello, I was hoping you could advise on battery charging for a large electric boat project. These batteries require a fast charge cell voltage of 2. Herb Korn Very informative.
The regulator in the alt. What is the max. A typical AGM battery should be charger Art I liked the article, I just purchased a Evolution 1 Tent trailer and the prior owner installed 2 6v batteries for power and also installed LED lights.
The batteries are connected in series to produce 12v. What typ of charger should I use to charge and maintain the batteries when not in use. If you would like help picking on out please contact our Tech Department.
Paul Mulvenna Excellent article. The supplied charger is only rated 0. If I was to buy a higher powered 12V charger e. We live off-grid with a PV array as our only charger.
Time to get a genset and charger to keep the batteries healthy. The 12v batteries have a c20 capacity of ah. What do you recommend we buy? Thanks in advance, Ed. How high should the charge cycle, bulk, absorb and float cycles be.
My charge is now at Is that in the right range? BatteryStuff Tech If you have a charger that you can set the voltage depending on the stage, I would suggest talking to the manufacturer of the batteries, so you can charge them based off their recommendation.
We sell smart chargers that are already pre-configured based off their history of the manufacturers experience. Every manufacturer is a little different, which is why I would recommend talking to the battery manufacturer.
The light is supposed to turn green when the batteries are fully charged but I have to keep stopping as the batteries are bubbleing and getting hot? I am not sure if the charger is a 3 stage or not?
TECH We recommend contacting the manufacturer regarding your charger. Your battery should not be hot to the touch, so the charger could be malfunctioning, or the charger is attempting to charger a battery that cannot accept a full charger and is not timing out.
Dave Bort hi my camper currently runs 2 ah agm batteries and 1 ah flooded battery. The Optima Blue Top batteries are replacing two wet cell batteries. So now it looks like I need to buy and install a new battery charger.
One for the house batteries in series, one for the port engine, and one for the stbd engine. I also have a battery for the generator which is not on a charger.
The engine and generator starting batteries are all wet cell. Can you recommend some choices for a battery charger. Recommended Charging Information Alternator: Charge until current drops below 1 amp.
Cyclic or Series String Applications:: When current falls below 1 amp, finish with 3 amp constant current for 1 hour. All limits must be strictly adhered to. Performance Data Cold Cranking Amps: I am experimenting with a machine that runs on 24v.
I want to replace the power supplies for a battery pack. I need about Ah, so Im thinking 2 12v Ah connected in series. I think it will, but rather ask the expert. I also have a minnkota 36V TM on the bow.
Previous electronics were older lowrance units and TM was a 24v system. Charger is a noco genius 4 bank 40 amp total. Does jumper have to be same size as main power wire? Does my system seem right…and what is the best way to test voltage output?
Katie For a given AGM battery type, find the voltage and constant current for constant voltage and constant current mode of any given volts and amp-hours. Tom I have a c-pap machine that I use when dry camping.
It is 5 amps, watts. I need a battery that will give me 8 hours of power. Do you have any suggestions? Also, looking for right size inverter to handle the task along with good battery charger.
If you are running that for 8 hours, then your total wattage used will be 5, watts. In order to run that off of battery power you would need AH at 12 Volts, ran through a watt inverter.
Rick W This seems excessive. Since the Law of the Conservation of Energy applies, then the input power Wac must be equal to the output power Wdc, then since the input voltage in this case is Vac and output voltage is 12Vdc, the ratio is In this case, the input current is 5Aac, so the output current must be 50Adc.
Since the OP wants it to last for 8 hours, then it seems that the AH rating of the battery would only need to be AH We would require more information about your situation. Please contact one of our techs at tech batterystuff.
Clever Survivalist Nice article because of simplicity. It is a great starting point for people that havent done alot of research, but for me, I had most of this info already.
Barney Thank you for such an informative site. Your site is a fantastic resource! It will float charge 2 lead acid starting batteries, one generator starting battery, and a house bank consisting of 6 AH 6V golf cart batteries connected series-parallel The house system is VAC.
The load on the house bank batteries will be no more than 20a DC, but will vary over my intended use time of hours between charging opportunities. Im looking for a fast charge time, because occasionally the charge source will be the gas generator, and the less that runs, the better.
I suspect my inverter is sized with a greater capacity than my battery bank can safely support. Do you see any holes in my plan, and for the charger is my best option to get as many amps as I can afford?
E-astronomer Thank you for this great information!
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15.03.2018 - After replacing the hold-down bracket, reconnect the cables in reverse order, i. A typical lead-acid battery produces approximately 2. So keeping the cost of the battery low, little to no maintenance would be nice. Ccleaner free download for windows xp latest versi... Destratification occurs when the turbulence causes the electrolyte to be mixed and rendering the SG uniform throughout the depth of the cell. Whenever possible, please follow the manufacturer's instructions for testing, jumping, installing, charging and equalizing batteries. Visually inspect for obvious problems.
160 best charge rate for a deep cycle battery person.
06.03.2018 - These AGM batteries actually recommend charging at a higher voltage than what is considered normal, or safe for the other battery types. Brand new batteries on a brand new charger. Its not listed anywhere on the battery itself, nor is it on the invoice. Ccleaner free download for windows 7 kickass - You... My charge is now at These batteries require a fast charge cell voltage of 2.
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03.03.2018 - Automobile industry liability lawyers prefer this type of battery because consumers are less likely to be injured. Thanks for any light you can shed on this. Ccleaner free download 64 bit for windows 7 - Full... Diffusion is the spreading, intermingling and mixing of one fluid with another. I need about Ah, so Im thinking 2 12v Ah connected in series.
Sep 18, · Charging Deep Cycle Marine Battery to fully charge a deep cycle battery, a volt maintenance charge when the battery is fully charged is your best.
Most manufacturers will prorate warranties based on the list price of the bad battery, so if a battery failed half way or more through its warranty period, buying a new battery outright might cost you less than paying the difference under a prorated warranty.
The exception to this is the free replacement warranty and represents the risk that the manufacturer is willing to assume. A longer free replacement warranty period is better. Thoroughly wash and clean the old battery, battery terminals and case or tray with warm water to minimize problems from acid or corrosion.
Heavy corrosion can be neutralized with a mixture of one pound of baking soda to one gallon of warm water. Wear safety goggles and, using a stiff brush, brush away from yourself. Also, mark the cables so you do not forget which one to reconnect.
Turn off all electrical switches in the vehicle and shut off the ignition switch. Disable any alarm systems. Secure the negative cable so that it cannot "spring" loose and make electrical contact.
If the hold down bracket is severely corroded, replace it. Dispose of the old battery by exchanging it when you buy your new one or by taking it to a recycling center. Please remember that batteries contain large amounts of harmful lead and acid, so please dispose of your old battery properly for safety and to protect our fragile environment.
After removing the old battery, be sure that the battery tray or box and cable terminals or connectors are clean. Auto parts stores sell a cheap wire brush that will allow you to clean the inside of terminal clamps and the terminals.
If the terminals, cables or hold-down brackets are severely corroded, replace them. Corroded terminals or swollen cables will significantly reduce starting capability. Use paraffin oil-soaked felt washer pads found at auto parts stores or thinly coat the terminal, terminal clamps and exposed metal around the battery with a high temperature grease or petroleum jelly Vaseline to prevent corrosion.
Do not use the felt washers between the mating conductive surfaces with side terminal batteries. Use of stainless steel and other metal washers have also caused problems with electrolysis and high resistance.
It can even cause the battery to explode. After replacing the hold-down bracket, reconnect the cables in reverse order, i. Before using the battery, check the electrolyte levels and add distilled water to cover the plates.
Check the state-of-charge and recharge if necessary. Then recheck the electrolyte levels after the battery has cooled and top off with distilled water as required, but do not overfill.
There are up to four phases of battery charging: The bulk stage is where the charger current is constant and the battery voltage increases. The absorption phase is where the charger voltage is constant and current decreases until the battery is fully charged.
For example, the ending current for a ampere-hour battery is 1. Equalizing reverses the build-up of chemical effects like stratification, where acid concentration is greater in the bottom of the battery.
It also helps remove sulfate crystals that might have built up on the plates. The frequency recommendation varies by manufacturer from once a month to once a year, from 10 to deep cycles, or when a specific gravity difference between cells reaches.
Heavy gassing should start occurring be very cardeful about safety precautions. Take specific gravity readings in each cell once per hour. Equalization has occurred once the specific gravity values no longer rise during the gassing stage.
The optional float phase is where the charge voltage is reduced, held constant and used indefinitely to maintain a fully charged battery. An excellent and easy to understand tutorial on battery charging basics can be found at http: The following are multi-stage charging algorithms from Deltran Battery Tender for three different types of deep cycle batteries: It is important to use the battery manufacturer's charging recommendations whenever possible for optimum performance and life.
In addition to the earlier cautions, here are some more words of caution: Never, never disconnect a battery cable from a vehicle with the engine running because the battery acts like a filter for the electrical system.
Unfiltered [pulsating DC] electricity can damage expensive electronic components, e. Turn off all electrical switches and components, turn off the ignition and then disconnect the battery.
For non-sealed batteries, check the electrolyte level. Make sure it is covering the plates, and it is not frozen before starting to recharge. Do not add distilled water if the electrolyte is covering the top of the plates because during the recharging process, it will warm and expand.
After recharging has been completed, recheck the level. Do NOT smoke or cause sparks or flames while the battery is being recharged because batteries give off explosive gasses. Gel cells should be charged over a hour period and never over the manufacturer's recommended level or over Follow the battery and charger manufacturer's procedures for connecting and disconnecting cables and other steps to minimize the possibility of an explosion or incorrectly charging the battery.
You should turn the charger OFF before connecting or disconnecting cables to a battery. Do not wiggle the cable clamps while the battery is recharging, because a spark might occur, and this could cause an explosion.
Good ventilation or a fan is recommended to disperse the gasses created by the recharging process. Insure that charging with the battery in the car with an external MANUAL charger will not damage the vehicle's electrical system with high voltages.
If this is even a remote possibility, then disconnect the vehicle's battery cables from the battery BEFORE connecting the charger. If you are recharging gel cell batteries, a manufacturer's charging voltages can be very critical.
Sometimes, you might need special recharging equipment. Match the charger or charger's setting for the battery type you are recharging or floating. Timers that will cut-off the charger will help prevent overcharging the battery.
For discharged batteries, the following table lists the recommended battery charging rates and times: C-rate is a measurement of the charge or discharge of battery overtime.
More expensive three stage microprocessor controlled chargers are available that will automatically provide bulk, absorption and float charging. A four-stage charger will provide an equalizing charge in addition to the bulk, absorption and float charging.
To compensate for electrolyte temperature, which has a negative temperature compensation coefficient, adjust the charging voltage. If left unattended, cheap, unregulated trickle or manual battery chargers can overcharge your battery because they can decompose the water out of the electrolyte.
Avoid using fast, high rate, or boost chargers on any battery that is sulfated or deeply discharged. The electrolyte should never bubble violently while recharging because high currents only create heat and excess explosive gasses.
The typical life of a deep cycle battery is: Recharging slowly and keeping your battery well maintained are the best ways to extend the life of your battery. Recharge a deep cycle battery as soon as possible after each use to prevent sulfation.
In warmer climates and during the summer, watering is required more often. Check the electrolyte levels and add distilled water, if required. Never add electrolyte to a battery that is not fully charged'just add distilled water and do not overfill.
The plates must be covered at all times. Shallower the average depth-of-discharge DoD, increases the battery life. Maintaining the correct state-of-charge while in storage, electrolyte levels, tightening loose hold-down clamps and terminals, and removing corrosion is normally the only preventive maintenance required for a deep cycle battery.
Never discharge below Loss of electrolyte due to heat or overcharging. Freezing or high temperatures. Using tap water which causes calcium sulfation.
Positive grid corrosion or growth due to high temperatures. If left in a vehicle, disconnecting the negative cable will reduce the level of discharge by eliminating the parasitic load.
Cold will slow the self-discharge process down and heat will speed it up. Use the following six simple steps to store your batteries: Physically inspect for damaged cases, remove any corrosion, and clean and dry the battery tops.
Fully recharge the batteries. Check the electrolyte levels and add distilled water as required, but avoid overfilling. An alternative would be to connect an automatic voltage regulated, solar panel or smart trickle charger to float batteries.
Based on the manufacturer's recommendations, use an automatic or smart charger that has been manufactured for this purpose and battery type. You may also use a setting of The following graph from Concorde demonstrates the effect of temperature on float voltage requirements.
Storing a battery on a concrete floor will discharge them. A hundred years ago when battery cases were made of porous materials, such as wood, storing batteries on concrete floors would accelerate their discharge.
Modern battery cases, made of polypropylene or hard rubber, which are better sealed, so external leakage, causing discharge, is no longer a problem. However, the top of the battery must be clean and dry.
Temperature stratification within large batteries could accelerate the internal leakage or self-discharge if the battery is sitting on a cold floor in a warm room or is installed in a submarine.
Driving a car will fully recharge a battery. Some of factors affecting a car charging system's ability to charge a battery are: Generally, idling the engine or on short stop-and-go trips during bad or hot weather or at night will not recharge a battery.
A long daytime trip in warm weather should recharge a battery. A battery will not explode. Recharging a wet lead-acid battery normally produces hydrogen and oxygen gasses.
While spark retarding vent caps help prevent battery explosions, they occur when jumping, connecting or disconnecting charger or battery cables, and starting the engine. While not fatal, battery explosions cause thousands of eye and burn injuries each year.
When battery explosions occur when starting an engine, here is the usual sequence of events: One or more cells had a high concentration of hydrogen gas above 4. The electrolyte levels fell below the top of the plates due to high under hood temperatures, overcharging, or poor maintenance.
A low resistive bridge or treeing formed between the top of the plates such that when the current started to flow, it caused an arc or spark in one of the cells. That combination of events ignites the gas, blows the battery case cover off and spatters electrolyte all over the engine compartment.
The largest number of battery explosions while starting an engine occurs in hot climates. When an explosion happens, thoroughly rinse the engine compartment with water, and then wash it with a solution of one-pound baking soda to one gallon of warm water to neutralize the residual battery acid.
Then thoroughly rewash the engine compartment with water. A battery will not lose its charge sitting in storage. Higher temperatures accelerate this process.
Maintenance free batteries never require maintenance. In hot climates, water in the electrolyte is decomposed due to the high temperatures and normal charging of a wet maintenance free battery.
Water can also be lost due to excessive charging voltage or charging currents. Non-sealed batteries are recommended in hot climates so they can be refilled with distilled water when this occurs.
Test the alternator by disconnecting the battery with the engine running. A battery as like a voltage stabilizer or filter to the pulsating DC produced by the charging system. Disconnecting a battery while the engine is running can destroy sensitive electronic components, for example, emission computer, audio system, cell phone, alarm system, etc.
These damages can occur because the voltage can rise to 40 volts or more. In the s, removing a battery terminal was an accepted practice to test charging systems of that era. That is not the case today.
Just say NO if anyone suggests this. Pulse chargers, aspirins or additives will revive sulfated batteries. Using pulse chargers or additives is a very controversial subject. Most battery experts agree that there is no conclusive proof that more expensive pulse charges work any better than constant voltage chargers to remove sulfation.
They also agree that there is no evidence that additives or even aspirins provide any long-term benefits. While there is no doubt that turning on your headlights will increase the current flow in a car battery; it also consumes valuable capacity that could be used to start the engine.
Therefore, this is not recommended. For extremely cold temperatures, externally powered battery warmers, battery blankets, or engine block heaters are highly recommended.
AGM and Ni-Cad batteries perform better in extremely cold temperatures than wet cell batteries. Batteries last longer in hot climates than in cold ones.
Batteries last approximately two thirds as long in hot climates as cold ones. Heat kills batteries, especially sealed wet lead acid batteries. Deep cycle batteries have a memory.
Discharging, like charging, depends on a number of factors such as: For example, a new, ampere-hour battery with a amp load should last approximately 7. As the battery ages, the capacity is reduced.
Lead sulfation occurs when a lead sulfate compound is deposited on the lead electrodes of a storage battery; this is a problem if the lead sulfate compound cannot be converted back into charged material and is created when discharged batteries stand for a long time.
The positive plates will be light brown and the negative plates will be dull off-white. Over time, the battery loses capacity and cannot be recharged. Apply a constant current from one to two amps for 48 to hours at You might have to increase the voltage in order to break down the hard lead sulfate crystals.
Replace the electrolyte with distilled water, let stand for one hour, apply a constant current of four amps at Remove the old electrolyte, wash the sediment out, replace with fresh electrolyte, and recharge.
If the specific gravity exceeds 1. The sulfate crystals are more soluble in distilled water than in electrolyte. As they are dissolved, the sulfate is converted back into sulfuric acid and the specific gravity rises.
These techniques will only work with some batteries. For example, if you have consumed ampere-hours from a amp hour battery, then you do not want to recharge it at rate any greater than 40 amps in one hour.
At a amp, charging rate, it should take approximately 4. BCI] After the curing of the plates, they are made up into cells, and the cells are inserted into a high-density tough polypropylene or hard rubber case [ 1 in the diagram above].
Digital Voltmeter Open Circuit Voltage. Hydrometer Average Cell Specific Gravity. Add or Subtract to Digital Voltmeter's Reading. The process of equalizing a battery causes the battery to heat up and gas.
While the gassing can work itself out of the battery vents, some manufacturers do not have large inner cell connectors to withstand that type of charge. Lifeline Battery is one of the manufacturers we carry that does promote equalizing their batteries.
In the end you need to contact the manufacturer of your battery to see what they recommend. John I have 6 2v Ahr agm batteries hookup for 12 v, how many watt solar panel will I need to charger my battery with a MPPT solar controller?
BatteryStuff Tech It depends on what you are trying to accomplish. If your just looking to maintain a fully charged battery pack with no draw coming off the batteries I would generally recommend a panel similar to our Solarland 12v 30 Watt Panel for your capacity.
This ensures that a good charge is going to the battery pack daily, and it can get the batteries top off fairly quickly if your have a long stretch of bad weather. If your trying to design a system to supplement energy coming off the batteries then I suggest reading our article Solar Systems the Right Way.
This article will get you started in the right direction. The normal consumption is probably only w. We have a honda EUi generator which isw rated w. We run this to charge the batteries.
We need a regulated charger of the maximum we can run from this generator, 40amp? What is the maximum we could run? Great site by the way, we have nothing similar in the UK which is where w are based, but the electrical info is international!
Once you find a brand that you intend to use look to their AC Input ratings. The Wattage rating has to be below your continuous run rating of your generator. I hope that helps!
BatteryStuff Tech I would recommend a 12v 10 Amp charger for that battery. If you look into our 12 Volt Smart Battery Chargers: You will find mountable, and portable chargers depending on your need.
If you require further information feel free to contact our Tech Department. Trevor Hello, I was hoping you could advise on battery charging for a large electric boat project.
These batteries require a fast charge cell voltage of 2. Herb Korn Very informative. The regulator in the alt. What is the max. A typical AGM battery should be charger Art I liked the article, I just purchased a Evolution 1 Tent trailer and the prior owner installed 2 6v batteries for power and also installed LED lights.
The batteries are connected in series to produce 12v. What typ of charger should I use to charge and maintain the batteries when not in use. If you would like help picking on out please contact our Tech Department.
Paul Mulvenna Excellent article. The supplied charger is only rated 0. If I was to buy a higher powered 12V charger e. We live off-grid with a PV array as our only charger.
Time to get a genset and charger to keep the batteries healthy. The 12v batteries have a c20 capacity of ah. What do you recommend we buy? Thanks in advance, Ed. How high should the charge cycle, bulk, absorb and float cycles be.
My charge is now at Is that in the right range? BatteryStuff Tech If you have a charger that you can set the voltage depending on the stage, I would suggest talking to the manufacturer of the batteries, so you can charge them based off their recommendation.
We sell smart chargers that are already pre-configured based off their history of the manufacturers experience. Every manufacturer is a little different, which is why I would recommend talking to the battery manufacturer.
The light is supposed to turn green when the batteries are fully charged but I have to keep stopping as the batteries are bubbleing and getting hot? I am not sure if the charger is a 3 stage or not?
TECH We recommend contacting the manufacturer regarding your charger. Your battery should not be hot to the touch, so the charger could be malfunctioning, or the charger is attempting to charger a battery that cannot accept a full charger and is not timing out.
Dave Bort hi my camper currently runs 2 ah agm batteries and 1 ah flooded battery. The Optima Blue Top batteries are replacing two wet cell batteries. So now it looks like I need to buy and install a new battery charger.
One for the house batteries in series, one for the port engine, and one for the stbd engine. I also have a battery for the generator which is not on a charger. The engine and generator starting batteries are all wet cell.
Can you recommend some choices for a battery charger. Recommended Charging Information Alternator: Charge until current drops below 1 amp. Cyclic or Series String Applications:: When current falls below 1 amp, finish with 3 amp constant current for 1 hour.
All limits must be strictly adhered to. Performance Data Cold Cranking Amps: I am experimenting with a machine that runs on 24v. I want to replace the power supplies for a battery pack. I need about Ah, so Im thinking 2 12v Ah connected in series.
I think it will, but rather ask the expert. I also have a minnkota 36V TM on the bow. Previous electronics were older lowrance units and TM was a 24v system. Charger is a noco genius 4 bank 40 amp total.
Does jumper have to be same size as main power wire? Does my system seem right…and what is the best way to test voltage output? Katie For a given AGM battery type, find the voltage and constant current for constant voltage and constant current mode of any given volts and amp-hours.
Tom I have a c-pap machine that I use when dry camping. It is 5 amps, watts. I need a battery that will give me 8 hours of power. Do you have any suggestions? Also, looking for right size inverter to handle the task along with good battery charger.
If you are running that for 8 hours, then your total wattage used will be 5, watts. In order to run that off of battery power you would need AH at 12 Volts, ran through a watt inverter.
Rick W This seems excessive. Since the Law of the Conservation of Energy applies, then the input power Wac must be equal to the output power Wdc, then since the input voltage in this case is Vac and output voltage is 12Vdc, the ratio is In this case, the input current is 5Aac, so the output current must be 50Adc.
Since the OP wants it to last for 8 hours, then it seems that the AH rating of the battery would only need to be AH We would require more information about your situation. Please contact one of our techs at tech batterystuff.
Clever Survivalist Nice article because of simplicity. It is a great starting point for people that havent done alot of research, but for me, I had most of this info already. Barney Thank you for such an informative site.
Your site is a fantastic resource! It will float charge 2 lead acid starting batteries, one generator starting battery, and a house bank consisting of 6 AH 6V golf cart batteries connected series-parallel The house system is VAC.
The load on the house bank batteries will be no more than 20a DC, but will vary over my intended use time of hours between charging opportunities. Im looking for a fast charge time, because occasionally the charge source will be the gas generator, and the less that runs, the better.
I suspect my inverter is sized with a greater capacity than my battery bank can safely support. Do you see any holes in my plan, and for the charger is my best option to get as many amps as I can afford?
E-astronomer Thank you for this great information! After studying many articles and web sites, including those specifically from authors writing about my own area of interest in batteries, I believe I found most of my answers or at least solid confirmations and clarifications here.
But I still have a couple of questions because some of those other writings contradict each other and your material in a couple of ways. All of this has me confused. Should I limit my choice of Ah rating to a lower number twice my need per cycle for my kind of usage?
This may be outside your subject matter expertise, or depend on specific unit features, but I also need to know if built-in inverters draw power when nothing is plugged into them.
BatteryStuff Tech The truth is, the less you draw down on the battery, the more cycles the battery will provide. There is no golden rule. Steve I am installing a backup sump pump using a deep cycle marine battery with inverter.
I have a 1. We are not anticipating this pump to be used very often. Therefore, if you are using a 1. Rick my girlfriend has a custon harley, she has a pigtail charger we cant find the plug in sorce for charging the battery on her bike?
Mike Love your site and your service. Its not listed anywhere on the battery itself, nor is it on the invoice. The manual for the charger says that if your unsure of the battery makeup, use the Normal mode.
What does the charger do differently in AGM mode? Thanks for any light you can shed on this. These AGM batteries actually recommend charging at a higher voltage than what is considered normal, or safe for the other battery types.
What would you recommend for a trickle charger for the PC Odyssey battery? Bob Very Informative page…. I have been told a 48 volt charger can be used safely but sounds a bit suspecious to me….
It will cause harm. Now, amps is a completely other story. BatteryStuff Tech I recommend a 48 volt charger, of course. Anywhere from 4 — 16 amps of charge rate should be fine.
Gokartfreak I was just wondering — theoretically would using 2 24v chargers or 4 12v chargers simaltaneously be better than a single 48v charger besides the cost? However, you can charge the batteries independently using multi-bank chargers, or separate chargers.
Just make sure your connects are correct. Gokartfreak i just read somewhere and was confused if the charger is to be connected to the battery directly or does the controller have any role to play in the charging process?
BatteryStuff Tech Controllers are recommended for solar chargers. But standard AC plug-in chargers are micro processor controlled, there is no need for any additional controlling. Hookup directly to the battery is the best method of charging.
BatteryStuff Tech Pretty much any of our motorcycle chargers will work. Battery Tender is the most popular brand, but I personally recommend Pulse Tech.
Please take a look at our 12 volt battery chargers. Anything 4 amps and under will work for you. I have monitored the charging cycle and see no evidence of a 3 step process whereby the regulated voltage is dropped back as the battery approaches full charge.
I have monitored this voltage with my digital meter and the digital voltage reading on the charger itself and have noticed the regulated voltage increases more as the battery approaches full charge.
On the 10 amp rate the regulated voltage is just over 16 volts near full charge. And on the 6 amp rate the regulated voltage is just under 16 volts near full charge. This happens the same on the standard setting with a lead acid battery.
The charger is suppose to be automatic, but it may be defective. It has the multi-bottles of acid that you put in and seal. I appreciate any info. If your AGM battery came with an acid pack, it requires activation.
But once the cells are sealed with the cap strip, there is no need to ever open it up again. HP no longer makes this battery charger, so I ordered one from another supplier, but it did not work though it had the above specifications.
From where can I obtain one, and how do I know it will work.
Coments:
10.03.2018 Vudodal :
Choosing a Battery Charger. for your Boat. flooded batteries can accept a charge rate of up to 25 don’t completely discharge a deep cycle battery if it can. Choosing the Best RV Battery: Deep cycle battery capacity is measured in but I can’t say whether they would have been better without the higher charge rate. General deep cycle battery care A fully charged battery will give you the best and time and/or higher finish rate (higher amperage at the end of charge).
15.03.2018 Tektilar :
Get your deep cycle battery Although these can be cycled down to 20% charge, the best lifespan (and for nearly all deep cycle batteries) is the "20 hour rate. Deep cycle battery faq and C-rate is a measurement of the charge or Recharging slowly and keeping your battery well maintained are the best ways to. How to Pick the Right Battery Another instance would be a marine deep cycle battery I recommend using 3% of your battery capacity as the charge rate.