Connecting differently charged lipos in serial (12s)

[mba83]

I am building by first 12s heli, and was wondering: if, by any chance I make a mistake and load up the heli with one full pack and one empty pack, what will happen? My flight will obviously be shorter before I hit the LVC, but will the lower-charged pack get ruined?

Thanks!

[DrSteve]

Simple answer, the less charged pack will be discharged below the safe limit and probably ruined.

[RedOctobyr]

Originally Posted by DrSteve

Simple answer, the less charged pack will be discharged below the safe limit and probably ruined.

+1. The ESC would likely not see this as LVC until too late, as 6 cells would still be properly charged. While 6 would be falling off a cliff

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[mba83]

Thanks, that makes sense.