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06.15.2009, 01:04 AM
Have your tried to charge without the external balancer? or charge your pack on other chargers with built-in balancer? I've experienced some older charger may cause this problem.
for e.g. the Robbe Infinity3 or MegaPower 960SR, same things with diff logo. The charger reads its inside voltage for pack volts, that value will include everything like the batt, the wires, plugs, and most significantly, the EXTERNAL balancer(internal MOSFETs, PCB traces, lead wire, plug, etc.).
The Robbe Infinity3 takes twice longer time to charge a same pack than my Hyperion 0720i under same charge current setting. Because of the sum up resistances, which the charges sees all as battery resistance, it enters the CV mode too much earlier and wastes a LOT of time there.--- though it's more expensive than my 0720.
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