a stupid question but any 4300mah battery (12v, 16.8v, 7.2v) should recharge to approx. 4300mah if discharged to 0.8v per cell?
my 7.2v 4300mah cell wont charge above 2500mah?! also, what should the full charged voltage be of a 7.2v nimh pack be?
If you've got a fancy charger you could try to cycle charge it and see how that goes?
tried. got a constellation charger
I'm not sure exactly how that charger works, but on mine you have to set voltage, charge current, capacity etc but I assume you have done all that correctly. My charger also has a cut off timer that can cut in before the battery is fully charger, is it possible that that is the issue?
How was the battery pack made? If the cells were overheated when being soldered together, the capacity will have dropped off. Found this one out the hard way with a home made pack of A123s
have had problems like this in the past, after cycling quite a few times if your still getting low amp readings then i would suggest cycling each cell individually as the constallation charger will charge 1 cell, you may find some cells are poor and letting the pack down. or you might find they are all just as bad as each other
time for another pack then
its really weird. it charged last night to 4250mah which is basically fully charged. then i discharged it. got in today and tried again and it did the same trick?! once its fully charged, its being wired up to the rest of them for the 24v pack!
Check your charger is set to the right capacity or automatic charge.
capacity is fine. must admit, i havent tried the auto charge yet and i kinda remember being quite good for conditioning new batteries?
The nimh auto mode seems to have done the trick! bit weird how the proper setting wont work?!
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