Schumacher PS-400-3A Instant Power Jump Starter Convenient built-in charger for automatic charging of internal battery Audible low-battery alarm sounds when battery is at less than 50% charge Heavy-duty copper jaw and metal clamps for solid connections to top and side post batteries 18 amp-hour battery delivers 850 peak amps and 250 crank assist amps Polyethylene case resists fuels and solvents This product cannot be shipped to Oregon or California