How does that Black and Decker jumperstarter thing work?
I know you plug it into the cigarette lighter and the DEAD BATTERY powers it, but if the batteries dead then how the hell does it power anything. Does that thing convert small amounts of energy in large amounts or what? I cant figure it out.
Best Answer - Chosen by Asker
This device basically works as another battery but it needs to stay and get its power from the car lighter which provides 12 V at the peak. Incase the car battery is dead then the jump starter would have been previously charged as recommended by the manufacturer, then the stored charge is enough to jump start the car.
I hope this helps..
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