The Sealey SL2S Jump Starter Power Pack is fully protected against reverse charging The Sealey SL2S is a dedicated 12V jump starter pack that benefits from being a compact, lightweight unit that also provides high power output. This starter features safe start protection with a sixty second cool-down period between jump-start attempts. Supplied with automatic maintenance charger that features dedicated Lithium charging algorithms and Patented Microprocessor controlled Speed Charging, with thermal runaway protection. The SL2S can supply up to ten full charges for smartphones and MP3 players or two full charges for your tablet computer. Features: Fully protected against reverse charging and overload Compact, lightweight unit that also provides high power output Features a digital display that gives step by step instructions Capable of starting 5L petrol engines and 3.6L diesel engines Features safe start protection with a sixty second cool down period between jump start attempts Holds the charge for up to five times longer with high energy density levels giving more battery power per gram Supplied with automatic maintenance charger that features dedicated Lithium charging algorithms and Patented Microprocessor controlled Speed Charging, with thermal runaway protection High power lithium battery and two 5V/2.1A USB outlets Can supply up to ten full charges for smartphones and MP3 players or two full charges for your tablet computer Specification: Weight: 3kg Voltage: 12V Model No: SL2S Peak Amps: 800A Starting Current: 540A Battery Rating: 76.8Wh Cable & Clamp Length: 508mm Auxiliary Output: 2 x USB - 5V/2.1A Size (W x D x H): 290 x 125 x 190mm Capacity: 24000mAh @ 3.2V, 6000mAh @ 12.8V Maximum Starting Capacity: Petrol: 5L  Diesel: 3.6L