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Battery pack rebuild Answered

I read the instructable on rebuilding the 14.4v cordless tool battery pack and I've done it before with a decent Milwaukee battery. Now I have one that the thermistor is shot. It said 6k8j on it. It was a disc like an advil pill with two leads. Where would I find a replacement? I've looked on digikey.com but can't make heads or tails of it. I imagine you would want it to stop charging at 70 degrees c like a lot of r/c packs do.

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NachoMahma (author)2008-03-17

. I think this is what you're looking for. (Not a recommendation for this part or vendor, just the first one I found.)
. BTW, thermistors don't usually go bad. You should be reading ~6.8Kohms at room temp.

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NachoMahma (author)2008-03-17

. As long as the temp/ohms curve is the same, just about any thermistor that will physically fit should work for your application.

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Sunbanks (author)2008-03-16

Maybe you could try ebay?

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