The Rockford Mini Jump Starter, No. RFDPPJS2976DLX, is a portable power source for personal devices including phones, notebooks, laptops, while also having the ability to jump start a variety of vehicles including cars and light duty trucks. This jump starter includes a lighted charge indicator, overcharge and discharge protection and an auto-off switch. This jump starter offers three power ports for charging, nano Lithium batteries that can hold a charge for up to a year, and a built-in flashlight with an S.O.S. pattern for emergency use. The Rockford Mini Jump Starter weighs 14 oz.