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Old 12-29-2009, 12:08 PM
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Velco
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Default RE: Electric Drive System Info



Dave,



Thank you, I was hoping someone was going to point this out. The info we get from manufacturers (in this case Kokam) is quite deceiving and nobody is mentioning internal resistance or what effect aging has on LiPo packs. Who cares about discharge at 1C!?  In spring 2008 I had to pay 1000$ for some H5 Kokam packs, and those same packs STILL today cost the same. Not to mention that Rhino 3S 2250 25C (19$) are performing way better than Kokam 3S 3200 30-50C ( 115$) ! All I am asking for is that manufacturers start publishing real life data. OK, that was my rant



As I have already said, I have noticed some 5% loss in capacity BOTH for a pack sitting on a shelf (don't ask why ) and a pack with some 50 cycles, also with the same internal resistance for both.



Velco