Jump from Zero Voltage:600A of current is powerful enough to a 6.0L gasoline car in a second.Charge Once For 50 Times of Jumpstart:The 20000 mAh high-capacity battery can continuously start a 3.0L Car more than 50 times.Resistant to Low Temperature:The built-in high-rate safety polymer battery cell is resistant to low temperature. It works even in temperature.Low Consumption and Long Battery Life:This jump keeps more than 85% battery after in standby mode for a year due to 0.05mAh of consumption and long battery lifeUSB Output:The USB ports are compatible with tablets,laptops,phones and support chargingEmergency Lighting and Charging:This multi-use jump can serve as an emergency light and a fast charger for phones, computers and other devices.Five-proof smart battery : anti-short circuit, anti-reverse connection, anti-overcurrent, anti-reverse charge, anti-overdischarge.Colour:blackMaterial:plasticPackage Contents:1 x car emergency start supply1 x USB cable1 x EvA storage bag1 x Smart Battery 1 x English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.