I read a big article on lipos and i understand the maintenance and all of that, but there are two plugins (if you will) and one is for a discharger. What do you use a discharger for? I know that a lipo is fully discharged at 3.0 volts and fully charged at 4.2 volts, doesn't driving your car discharge it? doesn't your esc have a low voltage cutoff that you can set to 3.0 volts?