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Lead Acid battery repair? Answered

I have a dead  6  volt 4ah   lead acid battery and 12 v 190 amp  liquid  battery some one help me to bring it back to life
12 v battery i used with ups

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rickharris
rickharris

8 years ago

Lead acid cells have a life span. Well looked after and charged all the time they may last 7 to 10 years in a none auto environment.

After that they are scrap.

If you allow the battery to discharge below 10.5 to 11 volts it more then likely won't take a charge.

If you leave it discharged for any time it will refuse to charge.

Although there are desulphator chargers out there i believe the end result is never as good as a new battery

Depending on your history with this battery it is most likely scrap.

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llanyort
llanyort

Answer 8 years ago

When i battery is in use, the sulfate in the electrolyte fluid creates a layer onto the lead, correct ?

And a desulphator is suppose to 'remove' the sulfate layering ?

Could you not physically remove this layer ? like a scrubber ?

Or does this sulfate layer need to be broken down chemically and "mixed" with the electrolyte fluid ?

thanks...

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Vyger
Vyger

8 years ago

I asked a very similar question a few months ago. I did buy a desulfator from eBay, followed the directions and left it on one battery for about 4 months. NOTHING, it didn't work. I tried it on a UPS battery, same thing, nothing. I used it on an almost dead battery, one that would still take a charge,  it appears to have helped it a little bit. It holds a charge for a longer time now. But as an experiment it was pretty conclusive--- desulafators will not bring back dead batteries. Keeping them charged however will prevent them from going dead as fast. There is a lot of information about it on the internet but lead acid batteries will only last for so long. If you recycle them then you can sort of re manufacture them.

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chnaveed.alam
chnaveed.alam

Answer 8 years ago

what about my 12 v liquid battery it is not dead but gives low performance
which liquid or powder used for enhance it's performance.

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jbaker22
jbaker22

8 years ago

I can help you build these circuits or I can show you chemicals that really fix your batteries.
http://home.comcast.net/~ddenhardt201263/desulfator/desulf.htm
Here is a homemade chemical fix.
http://www.youtube.com/watch?v=jfSSBS3go4M&feature=related