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Step 4Soldering to a battery
Update May 2011:
It's been five years since I posted this instructable - and I have another battery pack to work on. This one is a 19.2 volt pack, but still uses the Sub-C Ni-Cd batteries that my old drill used. Once again, I found that there were a few cells that were bad - making the entire battery pack useless. This time I'm just going to replace the bad cells with identical cells. The procedure is the same, but this time I decided to make a video of the soldering which can be a bit tricky.
I've already removed the bad cell from the pack - now I'm going to replace it with a good one.
Be careful not to short circuit any of the cells while soldering.
(I should have cleaned off the soldering tip better before I started)
It's been five years since I posted this instructable - and I have another battery pack to work on. This one is a 19.2 volt pack, but still uses the Sub-C Ni-Cd batteries that my old drill used. Once again, I found that there were a few cells that were bad - making the entire battery pack useless. This time I'm just going to replace the bad cells with identical cells. The procedure is the same, but this time I decided to make a video of the soldering which can be a bit tricky.
I've already removed the bad cell from the pack - now I'm going to replace it with a good one.
Be careful not to short circuit any of the cells while soldering.
(I should have cleaned off the soldering tip better before I started)
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Oct 3, 2011. 1:40 PMPocketBrain
says:
You should solder to the tab; soldering directly to the cell can cause internal damage. Soldering to the tab will require less time to melt the solder, as it is partially isolated from the cell itself, and much less heating of the battery's internals.
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