This convenient and versatile 12 volt air pump comes equipped with a 120 volt AC charger and a 12 volt charger that plugs into cigarette lighters. When charged, there are no cords to deal with. It's equipped with 3 adapters to fit valves on towables, pool toys, airbeds and other inflatables. It will inflate or deflate continuously for 15 minutes on a charge. Peak air pressure is 0.64 psi, volume is 260 liters per minute. and it draws 11.3 amps. AIRHEAD recommends topping off towables inflated with 12 volt pumps with a few strokes of AIRHEAD's Double Action Hand Pump or Foot Bellows Pump.