I have a reasonably modern charger (a few months old) and some old
rechargeable cells (about 5 years old). Is it wise to use the two
together?
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The charger is specified to give a charge rate of 350 mA. I think the charge voltage is 2.8 V per pair of cells. The charger has a "negative-delta-V" sensor.
The AAA cells are NiMH and are each rated as holding 0.185 mAh.
(Q.1) Will this 350 mA *RATE* of charge be too much for such cells to take resulting in noticeable adverse effects?
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Assuming the charge in the cells is fully depleted and assuming that the charge is taken up in a linear way, then the figures suggest a maximum charge time of 30 minutes.
(Q.2) Is it highly likely that the "negative-delta-V" will be sensed only after the cells have gone into overcharge (venting gas and messing up who-knows-what internally)?
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The charger is specified to give a charge rate of 350 mA. I think the charge voltage is 2.8 V per pair of cells. The charger has a "negative-delta-V" sensor.
The AAA cells are NiMH and are each rated as holding 0.185 mAh.
(Q.1) Will this 350 mA *RATE* of charge be too much for such cells to take resulting in noticeable adverse effects?
------
Assuming the charge in the cells is fully depleted and assuming that the charge is taken up in a linear way, then the figures suggest a maximum charge time of 30 minutes.
(Q.2) Is it highly likely that the "negative-delta-V" will be sensed only after the cells have gone into overcharge (venting gas and messing up who-knows-what internally)?