I have an EMAXX converted to mamba brushless. I'm running dual 2s lipos with a series connector so esentially I'm running 4s... the mamba instructions say to use the 2s cutoff setting only if using 2s batteries but wont that over drain them? what about the auto-lipo setting? wouldnt that be the correct one to use? the last time I bashed I had it set on 2s and my venom charger said I took too much voltage from them... I just dont want to ruin my batteries or blow the thing up.. any Ideas?