TomC Veteran Location: Gold Coast, Queensland, Australia
My Posts This: Topic Forum | buster1,
Are you charge/balancing this pack? If so, what are the individual cell voltages? If your pack has been sitting around for a while, one or two of the cells may have drifted apart, voltage-wise. If you try to simply charge this pack, then a cell might have gone over 4.25v before the charge was complete, thus damaging (puffing) this cell.
You might try rebalancing the pack and try to charge/balance it again to see if this helps. I'd keep an eye on it though, just in case!
In general, it's common for some packs to get a 'little' puffy after use, but this will usually go down once they are cooler and/or are recharged. If a cell puffs up during a charge, this usually indicates that this cell has been overcharged.
Cheers, TomC
CX2 2s Logo10- 3D 5s Trex600 10s HC-Rigid 2x Ion-x, 1x15s DS, 1x10s SS |