Studying the Eneloop datashee= ts (same site under pulldown menu), shows indeed that charging voltage may = be as high as 1.7V for cold environment, and 1.6 for room temperature.
HOME DEPOT ENELOOP BATTERIES PLUS CHARGER FULL
So they must then be = simply EMPTY? OK, put one on the lab supply, 80 mA for 16 hours, and voi= la, full again and working! But I did notice I had, to get 80 mA into that = AAA, set for 1.6V or higher charging voltage. That makes ab= out 2 Ohm Ri, and not 20 milli Ohm as Eneloop claims. Soldered it, 1.something volt, same current. Tried the next one, exactly the same! Found voltmeter lead in p= robe was lose. that made no sense, no voltage - no curren= t says Ohm. So what? Put = one on the voltmeter, no voltage ? Well measured if it still did any shor= t circuit current: 530 mA (AAA). But battery chemistry will probably always be a bit of a mystery.įormatting link I realiz= ed it could not have been too many charge-discharge cycles. So far that seems pretty good (mp3 player running all day on one). I will monitor these supposedly defective batteries for a while for self discharge and how long they last. But the claim that 'any' NiMH charger will charge them (>1000x) seems not correct. Anyways the things, with their higher output voltage than the normal 1.2V make for much longer use in my camera. Or maybe me shorting it for the short circuit current test changed something in the cell. What I think happened is that the Duracell charger refused to charge above 1.5V, and that the cell, in spite of being empty, needed that much voltage. The discharge voltage is normally higher than 1.2V, more like 1.28V for low loads. Studying the Eneloop datasheets (same site under pulldown menu), shows indeed that charging voltage may be as high as 1.7V for cold environment, and 1.6 for room temperature. So they must then be simply EMPTY? OK, put one on the lab supply, 80 mA for 16 hours, and voila, full again and working! But I did notice I had, to get 80 mA into that AAA, set for 1.6V or higher charging voltage. That makes about 2 Ohm Ri, and not 20 milli Ohm as Eneloop claims. Tried the next one, exactly the same! Found voltmeter lead in probe was lose.
that made no sense, no voltage - no current says Ohm. So what? Put one on the voltmeter, no voltage ? Well measured if it still did any short circuit current: 530 mA (AAA). Formatting link I realized it could not have been too many charge-discharge cycles.
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