Avoneer
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| posted on 19/9/05 at 08:31 PM |
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Re-juvinating re-chargeable batteries
Does anyone know the trick to re-juvinate re-chargeable batteries like theone in my drill?
Something like electrocuting the battery with a couple of AA batteries for a few seconds?
Cheers,
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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liam.mccaffrey
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| posted on 19/9/05 at 08:33 PM |
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you have to completely discharge them a few times a good way is with a small bulb
charge-discharge a few time usually removes the memory effect
i read this in Model engineers workshop magazine
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Northy
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| posted on 19/9/05 at 09:13 PM |
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DO NOT let the bulb got totally out though if you do this, is it will damage some of the cells in the pack.
Whats wrong with them Pat? I'll tell you what to do.
Graham
Website under construction. Help greatfully received as I don't really know what I'm doing! 
"If a man says something in the woods and there are no women there, is he still wrong?"
Built 2L 8 Valve Vx Powered Avon
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Avoneer
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| posted on 19/9/05 at 09:25 PM |
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My B&D drill only seems to work for minutes now rather than hours.
Come on G, be useful for a change!
Pat 
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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Hellfire
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| posted on 19/9/05 at 09:48 PM |
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Apparently the mamory effect is only relevant with Ni-Cd batteries. Most drills are now using Ni-Mh which do not suffer the same problems.
Source: useless information (dot-com)
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Bob C
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| posted on 19/9/05 at 11:35 PM |
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nah - the mammory effect is something else. NiCads get metal crystals growing through the electrolyte (I thought the term was "low memory"
) If you whack a few amps through you can burn these off & get a bit more life but basically the writing's on the wall.....
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speed8
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| posted on 20/9/05 at 07:21 AM |
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There was a place advertised a while back that deals with fixing all that sort of stuff, I'll try and dig it out.
Edit: This is the place
http://www.strikalite.co.uk
They repack rechargeable batteries or sell new ones. I've heard the prices are pretty reasonable.
[Edited on 9/20/05 by speed8]
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splitrivet
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| posted on 20/9/05 at 09:39 AM |
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Try cleaning the charging contacts with a pencil rubber Pat,you could put new cells into the battery pack, normally sub C size,solder tagged.But at
the end of the day is it worth it, bought a 30 volt cordless drill on saturday from a B&Q whorehouse for £26
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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Russ-Turner
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| posted on 20/9/05 at 10:04 AM |
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Don't you blow on batteries or rub them together or something to get more life out of them or is that just what people do with their remote
controls?
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Hellfire
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| posted on 20/9/05 at 11:23 AM |
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Or stick em on a radiator to get some heat into them ..........
Not that I'm suggesting you do this of course..
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Northy
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| posted on 20/9/05 at 05:47 PM |
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Pat what type are they?
NiMH or NiCd?
Graham
Website under construction. Help greatfully received as I don't really know what I'm doing!
"If a man says something in the woods and there are no women there, is he still wrong?"
Built 2L 8 Valve Vx Powered Avon
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Avoneer
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| posted on 22/9/05 at 09:54 PM |
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NiCD.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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