Powered by lithium-ion technology and fully protected against reverse charging and overload. Easily fits in a glove box or backpack and it benefits from being a compact, lightweight unit which provides high amperage output. Capable of starting 12V vehicles up to an 8 cylinder engine. Li-ion batteries have numerous advantages over lead acid, including a flat discharge curve. This ensures a greater and extended performance and holds the charge for up to five times longer with high energy density levels giving more battery power per gram. Includes an integral work light for use at night. Fitted with a 10,000mAh battery and two USB outlets (5V/2.4A and QC 3.0), this unit can also supply several full charges for smartphones and MP3 players or one full charge for your tablet/laptop.