How to charge/balance two TrakPower's

Originally Posted by Patrick

Do they know that you use both packs at the same time in the same vehicle, so they shouldn't get too out of balance?

Yes, and if they were (nearly) identical it is do-able with one balancer. I think there is enough variance in the packs that doing the two balancer thing is likely a safe play.

DM

[BrianG]

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.