Thread: New Product ESR / IR Meter fo Lipos
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Old Oct 28, 2010, 02:42 PM
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Southern Pride
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Haralson County GA. USA
Joined Oct 2004
34,852 Posts
4S A123 Systems LiFePO4 2300 from E Bay DeWalt 36V pack 2007 with 174 flights on it. 78F 9.5 / 8.4 / 8.9 / 7.9


Cells at 90F 8.4 / 6.8 / 7.7 / 6.6

Reading obtained with POWERLAB 8

Wayne's cold temp. performance drop sounds about right. When I was flying A123s in the winter they were stored inside in the 70s and I warmed them on the dash (defrosters) on the way to the field. They were warm after a flight and charged at 20 amps. they stayed warm and I flew only a couple of packs so they never had time to cool down.

Charles
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Last edited by everydayflyer; Oct 28, 2010 at 03:12 PM.
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