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BrianG · 01.02.2008, 03:27 PM

I don't agree. If two packs were, and are, always used together in the same vehicle, the cells won't be any more out of balance than a single 4s pack. Two 2s packs is no different than one 4s pack, electrically speaking. If large cell voltage variances were the norm, you'd see lipos with larger balancer wires/connectors so each cell could be charged at 1C individually. The only time two seperate packs would be imbalanced is when new. During the the intial charge, I would charge and balance at 1/10C to get them equalized. After than, any large imbalances would be from a cell going bad, or a really poor cell batch IMO.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	01.02.2008, 03:27 PM I don't agree. If two packs were, and are, always used together in the same vehicle, the cells won't be any more out of balance than a single 4s pack. Two 2s packs is no different than one 4s pack, electrically speaking. If large cell voltage variances were the norm, you'd see lipos with larger balancer wires/connectors so each cell could be charged at 1C individually. The only time two seperate packs would be imbalanced is when new. During the the intial charge, I would charge and balance at 1/10C to get them equalized. After than, any large imbalances would be from a cell going bad, or a really poor cell batch IMO.