Specification: Start Current:500A current:800A(3S) USB Output:5V 2A Battery Capacity:28800mAh Applicable temperature range:-40-80 Life:3000 Times Size:185x86x42mm Weight:1kg Package included: 1 x Multifunctional portable vehicle emergency starting powerji and acceories(as the picture shows) Features: 1.The neceary compaes for mountaineering, camping and other outdoor activities 2.Waterproof and dustproof 3.The battery capacity is large, durable and safe 4.Small size, slim and easy to carry 5.Low temperature resistance, high temperature resistance 6.Providing power to the car, starting the car in a flash, simply solving the dilemma 7.No need to install, no need to set up, just use a clip to connect the car positive and negative, open the power switch, the car can start (red - positive, black - negative) Practical functions: 1. Instantly start the car, safety and emergency neceities 2. Efficient intelligent charging, with adapter and charging line, can be applied to more than 95% notebook,mobile phones, tablet PCs, cameras and other electronic equipment 3. Temperature protection, short circuit protection, constant voltage protection, constant current protection,over charge protection, over discharge protection, balance protection, magnetic field protection We accept thedrop