Charge Once For 60 Times of Jumpstart The 20000 mAh high-capacity battery with four strings of cells can continuously start a 3.0L Royal Saloon more than 50 times. Support 12V/8L Gasoline Vehicles and 12V/4.0L Diesel Vehicles 4 strings of high discharge rate cells offer powerful performance for all car modles and displacement. Resistant to Low Temperature The built-in high-rate safety polymer battery cell is resistant to low temperature. It works even in subzero temperature. Low Power Consumption and Long Battery Life This jump starter keeps more than 85% battery after in standby mode for a year due to 0.05mAh of power consumption and long battery life. Intelligent Digital Display The intelligent digital display accurately indicates the battery status in case out of power suddenly. Dual USB Output The two USB ports are compatible with tablets, laptops, phones and support simultaneous charging of two devices. Emergency Lighting and Charging This multi-use jump starter can serve as an emergency light and a fast charger for phones, computers and other devices.