Quote (GrindTime @ 15 Feb 2012 19:54)
are you saying i dont need a power inverter then? i can go straight from battery to phone? (its not a phone im charging)
Whatever device you want to charge will say how many volts of dc or ac current it needs (probably dc) and how many amps
a car battery is 12 volts dc and 300-400 amps You will need to convert that to whatever your device needs. you should probably start being more specific if you want better help