resurrecting/recharging drill battery

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Old 06-28-07, 03:15 PM
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Question resurrecting/recharging drill battery

I have heard about a couple different methods of "resurrecting" or "recharging" batteries that won't hold a charge anymore, however, I don't know how to do it. Anyone out there know this "secret" method of fixing a drill battery that won't hold a charge?
 
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Old 06-28-07, 03:25 PM
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bigbrad123,

Sorry but it is such a good secret I don't thing anyone knows it.

When the insides of a battery degrade to the point the chemical reaction won't produce power no magic potion will change chemistry and physics.
Some will take a battery to a place that rebuilds them where they replace the cells but in a lot of cases the savings are marginal.
 
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Old 06-28-07, 03:40 PM
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Throw it away and buy a new one.
 
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Old 06-28-07, 06:13 PM
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See if you can find somewhere else besides a landfill for your package of chemicals aka the battery such as someone who recycles or collects them for recycling.

But bottom line is get a new one.There may be some instruction on preserving and extending battery life which might keep this from happening again for a longer period of time.
 
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Old 06-28-07, 09:55 PM
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Here's an old thread on the topic of batteries, and how some have "resurrected" them by replacing the bad cells. I'd just recycle them and get new packs.

http://forum.doityourself.com/showthread.php?t=238746

I've heard that some guys will charge their batteries in a refrigerator to get a "better charge". That makes sense, because you should never have your charger in the sun or try to charge a hot battery. Keeping batteries inside a hot vehicle or such during the summertime shortens battery life bigtime. I'm sure cold temps in the winter also harm them. Probably says so in the battery manual somewhere... I seem to recall seeing that once.
 
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Old 07-02-07, 11:34 AM
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Wink

Thanks for the info fellas. I guess I am SOL. Stupid batteries are expensive though. Anyone want to donate a few bucks to me? Just kidding.
 
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Old 07-03-07, 03:56 AM
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Ni-Cads develop a shorting whisker between layers in the cell.. They can SOMETIMES be burned out by connecting a huge capacitor 40,000 or more MFD across the battery.. It's a good idea to wear a face shield, and any other protective gear you may have..
 
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Old 07-03-07, 10:17 PM
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Ive kick started a couple of ni-cads I have, but they become unreliable and I found it really isn't worth the effort.
 
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Old 07-03-07, 11:26 PM
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The best way to find out if your battery is done for is to do the following. Put it in a freezer for 24 to 36 hours, then try to charge it. If it does not hold a charge, throw it out.
 
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