i like that answer! after our car suffered a dead battery for the second time, we bought a jump-starter (by peak, 600 amps) which we haven't needed to use, gratefully. but if i am alone and ever needed to jump the battery, i would so rather plug it into the 12 volt outlet than work with the jumper cables. i am assuming that the jump starter is the same as the battery booster yr referring to, or at least can be used in the same way. hopefully, it will NEVER be an issue again. that is my dream.