Kindest Regards I thought about drilling, found some videos, but I’m not sure if every battery is same that way. I HAVE GAINED FROM THE KNOWLEDGE IMPARTED,THANK YOU. As to de-layering of the mixed electrolyte- this is a subject that is by no means settled or even agreed upon that it happens. 21 hours) to suppress acid stratification. This intensifies when the batteries are overcharged. some one told me complete water take out from battery and again fill with electrical water I do and complete again refill with electrical water . No mix will work where the batt has faulty cells-s/c or o/c- but where a little sulphation is present . The dealer put new ones in only three years ago. It’s a sealed battery, so I can’t check water level. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. Then charge the battery slowly and for many days. Knowing that motor idling and driving in gridlocked traffic does not sufficiently charge the battery; charge the battery occasionally with an external charger. Beven, would you please tell me what is the reason of water turning black into solar tubular battery ? The voltage is only very slightly low, maybe just measurement tolerance, so not a failed cell, but the storage capacity and current capability may have diminished with age. Lead acid batteries are sluggish and cannot convert lead sulfate to lead and lead dioxide quickly during charge. I am sure there is a point where too much is gone and you can’t recover it, but it cleans up even plates that looked doomed in my experience. how much time required to for lead acid batteries to connect with charger after filling electrolyte. mixes similiar- what I have tried & don’t work are anything mainly cadmium sulphate. The positive plate grids contain, in addition to lead, a metal called antimony. these suggestions are to help you achieve low cost engineering. If happy batt is fully charged as above, adjust sg to get 1.260 @ 25’C- then see what happens in further discharge/recharge cycles. If I did NOT see this in a battery I would become worried. I read this article about acid concentration so I tipped the battery onto one side then the other over and over for about 2 minutes then attached the charge leads and it is now charging correctly. Farah - Put distilled or purified water into your batteries to replace the water lost by charging and by the heat. There may be some oil as well, from the separators. Fully-charged, most car batteries will measure at least 12.6 volts (~13.0-13.2V for OPTIMA YELLOWTOPs), but low voltage doesn't necessarily equal a bad battery. I am in Venezuela, a country devastated by a dictatorship, and I have to travel 40 kms. Description below. BU-501a: Discharge Characteristics of Li-ion, BU-502: Discharging at High and Low Temperatures, BU-504: How to Verify Sufficient Battery Capacity. Antimony can with stand high voltage charging, but as they also gas higher, they will also gas accordingly and lose water and will need to be topped up therefore. I would like to go with my car using the old battery. If you would like to discuss the general concept of battery-electric winches further, we can figure out how to take that off line. What is dbla(chelator) you refer to please? I drive well when next morning I again start car same problem I again faced such as make self crank carank low again low and battery power again off. Batteries have limited life - whether used or not because of self discharge/corrosion -  they are consumables and you should replace battery when they show signs of weakness. The battery is only two months old. The voltage is now not recovering although the hydrometer on all cells is reading fully charged. not recommended for motorcycle, I have 6-8 V Wetcell batteries in my golf cart. Allow a fully saturated charge of 14–16 hours. The deeper the discharge, the shorter the battery life will be. At home i took the battery out and let it sit for about 45 minutes, the voltage was dropping but steady now at 11.2v. Battery University monitors the comments and understands the importance of expressing perspectives and opinions in a shared forum. Am I correct? What might be the cause of this boiling? Acid stratification. When your car is running the cars alternator is charging the battery, this is why you should see a higher voltage. You might find from observation a lower voltage will work but 2.25V is too low. Then ups again starts charging the battery without any usage. AGMs need lower trickle/floating charge voltage, especially if operated in hot environment. My 12v battery I use for my boat is pushing out water out the terminals after I put it on a new 5amp trickle charger I just bought for about four hours and also topped up the water levels before charging as they were low. Keep in mind that batteries are only good for a few years. They need to be watered. The voltage, when the engine is running, should be in the range of 13.5-14.7 volts. batteries and why don’t switch to agm and valve regulated lead acid battery . When they no longer held a charge I investigated and saw that they were not maintenance free. any one can give a solution for our doubts, the battery voltage is 12 and the spgr is 1.250, when discharged the battery with 400 watts bulb, the back up is just 20 minutes. I left them in the RV last winter ( which was fairly mild). Anyway the batteries were all bone dry. I have been concerned that my converter in my RV trailer is bad and that my batteries are suffering because of it. Good day, I plan to monitor them carefully to ensure they do not fall below 50% and the water level is always above the plates. The question is, over extended storage periods what can be done via the chargers, under control of the system controllers (which can sense individual battery - not cell - voltages), to maximize the lifetime of the flooded lead-acid batteries in the prototype. It can last about twice as long as AGM. My application is just an example of a scenario that might have broader applicability. Is there some technical basis for the chemical mix you describe? I added too much water to a lead acid battery and it performs poorly now. And should i fill the fluid to the top?? I have a question regarding batteries on a isuzu truck The battery was bought in August 2011. Site by. Batteries made from the purest lead that has been processed into high quality positive and high quality negative plates, the purest acid and provided with the purest refill water throughout their service do not last very long. This is not a battery defect per se but is application related. no doubt you are using refractometer to check sg?. I have a 6v batter for my tractor. The same is true when measuring battery voltage to determine if a battery has gone bad. When charging a battery, do not turn the charger on until after the charger has been connected to the battery. A TDS meter measures level in sample- without one, simply use a multimeter on Ohms with probes dipped into sample- the higher the reading the better-i,e, infinity- drop a pinch of salt into sample & watch reading lower! Probably collects somewhere in the vehicle at the end of the charge when the batteries are gassing, gets blown out when you start driving the vehicle. Its power drops from 100% to 25%. If it is not hitting about 14.4V when it should be reacing full charge *23C) then you have a serious battery problems. This is not recommended for shared computers, Back to Problems, Questions and Technical. Quite a high percentage of batteries that are scrapped are still in very good condition. Explore simple guidelines to prolong lead acid batteries by proper use. When a battery is barely used like this and just sits on a float charger continuously, how often do you need to check the water level? I found the fully charged battery as my UPS showed operated 150 watt load just for 3 hours. . (sorry for bad english). What if the battery voltage gets too low, will my charger charge my batteries? Your interval of 1 week and charge to 2.25 V per cell is the kind of quantitative information I was looking for. I spilled it and measured it again. am looking for a way to reduce wtaer loss in order to reduce the number of times we need to access and top up with distilled water. please kindly tell me what should i fill in bettary. After half an hour we puted the battery back in the car, and the battery didn’t give a stable voltage. I purchased a coloumeter and wanted to check capacity of my car battery. What should I do? And I remember it was like that before. Turned it off, waited about 3 hours, now it’s back at 10.3v (10.6 unplugged from car). Driving a car for short distances with power-robbing accessories engaged contributes to acid stratification because the alternator cannot always apply a saturated charge. Many thanks. My wife's 2 year old Mini Cooper has the same problem, every month we have to put it on charge. The battery system is composed of 36 high Ah automotive starter batteries. What caused this to happen and how can I fix this problem? A common cause of car battery failures is acid stratification. In many applications, the winch would only be used weekends and it would be stored during the week. At least I learned I am supposed to check the electrolyte levels every month. BU-306: What is the Function of the Separator? Satay, I assume you have a 12v system with the one 12v battery? Fully charged (according to the battery charger) but the voltage is 12.4 or less, the battery is sulfated. I am determined to buy a new one but I need to get where the batteries are sold. The SG is showing fully charged. If the battery isn’t fully charged, it will diminish to 12.4V at 75%, 12V when it’s only … Are the casings bulging out-ie-swollen? Batteries will eventually die, but when and how? Sorry, 2.25 was a typo - I meant 2.55. My alternator was charging my battery too high. The strangest thing is that when I measured SG of new electrolyte in battery, it was lower than before. tonykid - You can fill with distilled water. Can this be done with a simple parallel wire hookup (using 6 ga. stranded wire)? Did you choose your batteries according to me which should be SLI type (automotive batteries or start stop type) for high discharge current for short periods - if so did you select Antimony (Sb) only chemistry on positive plate or calcium plus antimony conventionally written as Ca only for the positive plate (or may be you chose Se). ultracapacitors, that can provide the high power density necessary with greatly reduced weight and increased durability. Shahrukh - A lead-acid battery that is first fully charged, then simply left standing, will discharge slowly, on its own. a try to again start and make self but again battery down after some self. Just to be clear, the extended storage will likely be over the winter in an unheated storage unit. I have been receiving signals that my lead-acid battery car is down. They buy batteries at 25¢ and sell at about 37¢ a pound David Scott I’m reading to refill with distilled water but to charge it first then fill? It is indeed very weird, the battery shows signs of both over- and undercharge. So I repeatedly filling distilled water on 4/5 days interval. When I put them on charge all batteries started expelling liquid in small quantities. How to charge a car battery the best way. That is when they reach below 50% capabilities. Though the interior light itself has been known to short. Use distilled or de-ionized water. Low voltage battery Low voltage battery is in between 11.8-12 Volt. If not, what can be done to extend the calendar lifetime of such a battery system. During this period the winch would be parked in a hangar and there would be no physical motion to stir the batteries. Engr - Simply wait until the battery is gassing, is nearly 100% charged, just before you switch off the charger, is probably the best time to water. Why do they go dry and am I being scammed? I put together the following battery state of charge chart which indicates the state-of-charge (percent) as it relates to battery voltage or specific gravity. If it does, it may indicate a drain on the battery wit heverything switched off. Can high OCV be indicator of low water also? Also in my excitement to get into solar I added too many batteries for the solar array to charge, especially iunder 5 feet of snow and two eeeks of cloud in a row. I want to know that when we adding or top up the distilled water in to the in service lead acid batteries installed for the Ups system , does the battery acid will out and spill outside.bcz normally when water is added to the acid containinig inside the small container, there is burning and spillage . The low voltage battery mean you should prepare for a recharge battery or do a battery replacement (depends with the overall battery conditions). The battery is a 232 amp hr deep cycle (6 volt) and it has been doing an odd thing. My bike battery is dead. For prototype development, the battery system employed is expected to be flooded lead-acid as it is the least costly option and does not require sophisticated battery management. .I much appreciate Michael, sadly your batteries are probably not salvageable. however I realize that the batteries are holding the charge overnight since. A heavy discharge tester is showing good when fully charged however, once 10 to 20% has been removed the discharge tester cause the voltage to collapse to about 2v at a current of 10A. What makes you believe existing commercial mixes are not similar to what you have recommended? Strange one… John - If you say you recharged in a sense, it suggests you did not do a proper recharge. Any thoughts? This system is analogous to a series hybrid electric vehicle. The energy extracted during a launch is on the order of 1.2 kWh over a period of about 45 seconds with the peak power occurring very early in the launch and the power tapering down smoothly from there to a much lower level (~25 kW) by the end of the launch.. Any ideas, please? But I doubt if my battery would work properly. if the current increases more than about twice the stable value before rocking The principle is reading the acv across terms while pulsing a load- taken when new & periodically after, it says exactly the amount of aging in batt. At 4V I connected battery charger (CTEK MSX-5) and let it charged. Can anything be done to recover these batteries? They typically perform these tests for free in the hope that you will purchase replacement parts from them. Warren - The overcharging caused some of the antimony that is in the positive grids to be leached out and to be electroplated onto the fully charged lead metal active material of the negative plates. Next put em 1x1 on fully automatic “smart ” batt charger- @ full charge leave for week- term volts still up? In the winter it is 11.75. This is why batteries do not last as long under load as you would think. I read the voltage, and for my surprise was 12.60 volts, after only 5-10 minutes of charge. The water keel never went below the plates. What’s should my next move be? In all cases this battery of batteries are charged overnight with a single charger. The negative terminal releases electrons to the external circuit during discharge and procures an electric current, sometimes having the … checked out the fine print on the walmart bottle,  the water is filtered and fed ozone, by a variety of means. Overcharging leads to (mostly) drying out the water from electrolyte thus decreasing its capacity and life expectancy dramatically. I assume electrolysis has some how pulled material from the table. So either get a professional to set it up for you of do your homework, lots of it! A faulty or dying alternator is usually the problem, if the … What do you think is going on? Unplugged the Adverc but the meter was still showing 15v. They gave me a water with Sulphuric Acid(37%) solution. No one played with any other systems like we do today, it was simple. If the voltage rises quickly and does not fall, buy a new battery. If yes, why? John that is disappointing. How is that possible when I put same electrolyte in cells. Is the specific gravity the result of the electrolyte and water mixture ? This is my only power source and I really want to maximize battery life and capacity. The electrolyte of a stratified battery concentrates at the bottom, starving the upper half of the cell. What Is the Normal Charge for a Car Battery? I have just purchased a bottle of non-acid electrolyte water at my local garage. It’s fairly new, 18 months old, but not used much (a ride every few weeks). Usually, a standard car battery charger is giving out 4-15 amperes. My generator shuts off when V is 28.8 for 10 min. always connected to charge/discharge). I’m going to charge it up to full again and let it sit for another few hours and see what happens. i have 5 years old hollandia battery of hp 12-100D 100 AH now a days its constant voltage is low and it gives no longer duration power when i looked after opening cap of battery there is no any liquid, what should i do for its maintanicesss, just add water, it must be distilled water, nothing else Sir I have bought 4 deep cycles batteries for my car but as my car goes on a dump,the batteries are shaking and water is moving up and down. I disconnected the charger, and opened the caps, two of the wells looked fine, but under the cap of the third was a solid white mass that looked like a plug of styrofoam. When returned the batteries to the system they worked for a couple days and died again. I was taught initially that when maintencevon any battery was being performed and that whenever ( distilled ) water was being added, to always afterwards perform a ” equalize ” charge to chemically equalize it which will get the battery up to proper charge. However, when the engine is running, this charge should measure at 13.7 to 14.7 volts. Some truck (rented moving truck) the batteries just need to be charged and watered, and they can go a long while. When checking SG, I discover each cell is only approx 1.2 ...a low reading that suggests recharge to raise the SG higher. I have a little, home-made standby power system consisting of nothing more than a float charger, a flooded, lead acid deep cycle battery and an inverter. Observe the voltage rise during charge and set the timer to switch off at about 2.55 volts per cell. the only way to charge batt is at constant voltage of 14v watching ammeter- when charge rate falls to almost zero batt is fully charged(modern chargers with micro processor control do same). Can you give me a heads up on what might be the problem. The battery is lead acid nonsealed battery of 100A. I called the technician and he told the specific gravity was low just 1.150 and that a specific charger may be used to increase sg. Tap water may be usable in some regions. more money than sense! (ain’t free- like ac power seemed to be!). Thank you. Is this what may be called a surface charge? Charge in a well-ventilated area. and it is important to use distilled water, any mineral salts will electroplate within the battery and this surface is forever unusable, it may be wise to add water maybe once a month as opposed to wait till the battery is dried. check that the electrolyte level is above the plates (that the plates were not exposed to air) I have purchased an (AGS 200) lead acid battery about 12 days ago. I let it charge for a couple hours at about 1 amp current until the charger said it was full, i checked the voltage and it was 12.6 steady so i waited for 2hrs, it still said it was 12.6. HAve spent some time checking the earth strap (there is only one right?, engine steady to chassis, in my SPI's case shares the. What is the best way to keep them charged over a 3 month period, trickle charger, solar charger, or What? But sir I saw people taking there battery to refilling service center. sailboat, now they are dead. but problem was same. It would be worth checking the settings on your solar controller as, even with flooded batteries, they shouldn’t dry out in a year if the settings are correct. Is this of concern, and if so what can I do. I have two 6v Deka deep cycle batteries that will each charge to 6.45 and then settle to to 6.35. Before the start of the 2018 cruising season I fitted 3 X 100W solar panels connected via a Victron MPPT controller (the adsorption voltage limited to 14.25V - float 13.8) - mainly so we could leave the boat with the fridge running when away. It is also reading fully charged on a hydrometer. If the voltage falls below 12.4 V, the battery should be recharged as soon as possible. Any info on test kits or fixing this self induced problem is greatly appreciated. What may be the reason for this? Plz suggest, what is the ground and what is the remedy. Now the bettary is easyly down and no strong power / so I want to refill acid/ distilled water but I do not know which kinds of things should i fill. But then it dawned on me that if the chemical action created by charging leads to shorter battery life, then I might be doing harm or shortening the life of the batteries by applying charge only after discharge as opposed to applying the charger to maintain a charged state until a a few hours after dark. I expected 6. The other cells are okay, just one cell is10% below the minimum level on the battery (I can’t rememember if it was one of the ‘dry’ cells when I removed the battery from my motorcycle). after I start car I was happy car start but after 5 minute again stopped. Comments are intended for "commenting," an open discussion amongst site visitors. What happened when I charged it? Alternators use diodes (in a rectifier) to direct current flow out of … Greenwood Village, Colorado 80111 I have searched quite a few sites, but can’t come up with a conclusive answer. Cold helps to conserve charge. A perfect voltage with the engine running is between 13.7 and 14.7V. 12.8 is too low 1) As you can see I always drive a lot of times short distances, most of the time with my A/C on and sometimes with my cd player on. BU-804: How to Prolong Lead-acid Batteries, BU-804a: Corrosion, Shedding and Internal Short, BU-804c: Acid Stratification and Surface Charge, BU-805: Additives to Boost Flooded Lead Acid, BU-806: Tracking Battery Capacity and Resistance as part of Aging, BU-806a: How Heat and Loading affect Battery Life, BU-807: How to Restore Nickel-based Batteries, BU-807b:How to Restore NiMH batteries in Hybrids, BU-808: How to Prolong Lithium-based Batteries, BU-808c: Coulombic and Energy Efficiency with the Battery, BU-810: What Everyone Should Know About Aftermarket Batteries, BU-902: How to Measure Internal Resistance, BU-905a: Testing Starter Batteries in Vehicles, BU-912: How to Test Mobile Phone Batteries, BU-1002: Electric Powertrain, then and now, BU-1002a: Hybrid Electric Vehicles and the Battery, BU-1002b: Environmental Benefit of the Electric Powertrain, BU-1003a: Battery Aging in an Electric Vehicle (EV). BUT!!! I am told there are still too many benefits to lead acid battery’s that others aren’t able to match as of yet. On a hot day, try to park in the shade. The rested voltage is about 12.8 at sunset. at that point rock the batteries about the longitudinal axis, ±45º (just so it does not spill) Then charge slowly for a long time. Thanks BatteryUniversity 8-), I have a new (2 mos old) battery, 780 CA at 32 degrees and 625 CCAs. What prompts you to think the voltage is too high? To clarify: Some manufacturers put thicker lead oxide paste to make them last much beyond the expected battery life which may be the warranty period - but that may not be as predictable. fill to just cover the plates first I am facing problem with my car . it is just that it is no longer accessible! I’m thinking of braking the top of the battery just to add water. Wanting to keep my batteries in the 20% DOD range I determined that I would apply a charging system external to the solar charging during a few night hours. Their usable capacity I have recently noticed is now only about 20% or less. Don- “house batt” means deep- cycle? Recently we noticed that some of the batteries have “cracked”. The major golf-cart battery manufacturers make a special type of battery for solar. Never add acid. Luca - Use a simple garden hose irrigation timer. In the winter it is 11.75. There are even commercial products that do the same thing-ie, insulate the terms/conn from the SO2 corrosion. Dear Sir, Utkarsh - I have used ac water in batteries many times. I have a 4890 watt PV system. I got 2 small lead acid batteries at a goodwill store, and neither works. I have 6 banks of 4 L-16, 401 AH batteries. Test the battery, if the result is lower than the stnd CCA then The Voltage is 12.69 then you need to replace the battery. Apply a gentle load for the first five cycles to allow a new battery to format. These batteries are the original batteries, they have lasted about 12 years. Hi I would like to charge my trolling motor and boat batteries with a single battery charger…in my basement for overwinter storage. I just purchased a neglected sailboat that has been converted to electric propulsion. Specific gravity was also very high, about 1,31. Also ensure while storage the battery terminals do not have a discharge load. Pls I need a genuine answer (my sealed rechagable battery 12v 5AH is week pls can I add pure water to it or wat are the solutions? Is it possible for one cell to be “leaking” into the other? necessary in the wiring scheme? Note: at one time I did have a few parasitic draws but remedied by grounding directly to a cooper bus bar connected to neg battery post. Now it all makes sense. Peter- please say what “cracked” means- are the casings cracked & leaking electrolyte? This can take six months, a year. And it was 1,28 again. But I pushed this maintenance mode which pulses the battery periodically and just let it sit on that. I have actually just taken one of them and after removing a few amp hours was able to short it with a current of about 40A falling rapidly to less than one.