When you get a large charger, something over 250 watt the idea is to parralel charge with it. the charger is 1kw output, it does 30 amps. that takes 6x 5000mah 6s packs and ballance charges all 6 packs in about an hour and a half. if i used 12 volts in, that'd be like a 32-36 amp draw on the...