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OK, I've started a new test run of the Powergenix NiZn 1.6v batteries.
I originally had two sets of four AA NiZn batteries one set came installed in the charger
and another set I ordered at the same time. The first set I tried ended its run at 18hrs
27min.s of use, with one battery reading 0.5v and the other three reading ~1.5v. I marked the battery at 0.5v, as bad.
I recharged that set, including the bad one, and they all charged normally and all read
at full charge (>1.5v) after removal from the charger.
The set that shipped with the charger was still charged enough that the charger would
not charge them, so I used that set in the JBL until it dropped to three bars, then removed the batteries - again one of those had dropped to 0.5v. I again recharged this
set including this bad one, as well. They also read all at full charge.
For this test run I replaced the bad battery from one set with a good one from the
other set, so they are all batteries that had not failed in previous use. If it should turn
out that this test run ends with one of these discharged to 0.5v and the others still
good, then I would begin to suspect that somehow the JBL is draining one of these cells
in preference to all the others. If not then these batteries seem to have a 25% failure
rate, on first use.
I hope this can be worked out, because as it was, I got 18.5hrs use and still had three
batteries that appeared to have hardly any drainage, at all. I hope that it's just bad luck with those two batteries and that the "good" ones stand up to a lot of use.
Luck;
Ken
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