Portable Auto Jumper - Jumpstar The Auto Jumper recharges your car, truck or SUV's low battery without having to pop the hood Plugs into your vehicle's 12-volt outlet (the cigarette lighter), and transfers its stored power into your battery 10-15 minutes is all it takes for the Auto Jumper to breath new life into your battery Easily recharge your Auto Charger by leaving it plugged into the cigarette lighter outlet. The Auto Jumper only weighs 3lbs, and its dimensions, 2.5" x 7.5" x 1 7/8", allow you to store it away in your glove box