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Renew cordless drill batteries.. #75108
02/14/07 02:58 AM
02/14/07 02:58 AM
Cinner  Offline OP
Joined: Dec 2004
Posts: 78
Kelowna, B.C., Canada
Does anyone know if you can renew your codless drill batteries?

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Re: Renew cordless drill batteries.. #75109
02/14/07 03:58 AM
02/14/07 03:58 AM
Elviscat  Offline
Joined: Aug 2005
Posts: 214
Seattle Washington USA
well I know you can both have the batteries rebuilt, and buy new cells for them that you can solder together yourself, this link should help

Re: Renew cordless drill batteries.. #75110
02/14/07 06:41 AM
02/14/07 06:41 AM
jdo1942  Offline
Junior Member
Joined: Nov 2005
Posts: 31
st. louis, mo. usa
You can get the batteries rebuilt at "Batteries Plus" or other similar stores.

Re: Renew cordless drill batteries.. #75111
02/14/07 09:12 AM
02/14/07 09:12 AM
NORCAL  Offline
Joined: Sep 2002
Posts: 878
I had a battery rebuilt at "Batteries Plus" it was $15.00 cheaper then a new one and had to drop off and pick up the battery so where are the savings?

Re: Renew cordless drill batteries.. #75112
02/14/07 11:04 AM
02/14/07 11:04 AM
NJwirenut  Offline
Joined: Sep 2001
Posts: 806
Bergen County, NJ
I rebuild them myself. You can buy NiCd and NiMH cells with solder tabs from DigiKey or other electronic suppliers, and stick new packs together with a soldering iron and some hotmelt glue.

Re: Renew cordless drill batteries.. #75113
02/14/07 01:50 PM
02/14/07 01:50 PM
gfretwell  Offline

Joined: Jul 2004
Posts: 9,186
There was an article on a machinist BB the other day about this and they talked about zapping NiCads with a lot of current to burn the whiskers off. The safe way is with a big capacitor, charged up to about 1.5x the working voltage. Other thoughts were automotive battery chargers or just using jumper cables to a car battery for the 9.2v
It was pointed out that if the vent is plugged these things might blow.

I have zapped a NiCad before and it does work but some battery packs have a fuse in them that blows when you do this. (notably the IBM "Convertible" PC battery)

I would suggest putting these batteries in a piece of 4" and don't stand near the ends if you try it.

Greg Fretwell


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