| Electronics > Beginners |
| Nicd batteries |
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| Zalos:
I have 1000 nicd sub c 1.2 v never use them but are 6 years on the shelf Is any way to bring them back on life again? |
| Stray Electron:
Just charge them at no more than a 1/10 C rate and they should be fine. I used the same set of Sanyo CadNica's for over 20 years. |
| MosherIV:
As suggested, try charging them. See how much charge they hold. Some will be bad, if you are lucky some may be ok. They have been stored without a top up charge, will havd self discharged and long term storage discharged will damage them. The electrolyte may have dried out with long periods like that. |
| Brumby:
I would also suggest a gentle charging. I picked up 8 cordless drill NiCd battery packs many years ago and tried charging one up to see how it went. To my surprise, it held up pretty well. You never know your luck. |
| mzzj:
If they still measure above 0.5 volt they are probably good. Only works for high quality cells like Sanyo Cadnica, anything lesser tends to self-discharge to zero volts over many years. |
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