does charging lipo's at low amp decrease punch?

[blueb8llz]

the lipos were checked after the entire run. not just a partial run.
not sure if you guys are understanding me correctly. i know that zippys are cheap cells and are not as pwerful/punchy than the good enerland cells.
but what im saying is lets pretend i have a polyquest pack, and after bashing, the cells hit the lvc, and when i put it on the charger, its unbalanced. but of course, after charging it gets balanced again.
so while bashing, are these cells not as powerful and punchy due to the fact that the cells are getting unbalanced.
basically i just wanna know what happens performance wise due to unbalanced cells during bashing.