Unrivaled for performance and quality in the mini-jump-start market, the XP-10 is the best-selling and top-rated personal power supply currently available. Compact enough to fit in the palm of your hand, yet includes the ability to jump start diesel engines up to 7.3L and large gas engines, as well. May also be used to charge and power 19V laptops, 12V devices,(2) USB 5V devices, etc.