Portable Jump Starter With Power BankPortable Jump Starter with Power Bank 2 in 1: jump starter for cars as well as a powerful power bank Direct start with a high current boost (500A 12V) no lengthy recharging Protected against reverse polarity, short circuit and overload as well as being spark proof Modern Li Ion technology and powerful LiFePO4 battery Increased efficiency up to 90% usable battery capacity (Compared to conventional Li Ion cells with Lithium Cobalt(III) Oxide (LiCoO2))