1、With USB fast charging-This power bank not only provides charging for your phone, tablet, and other devices, but also provides strong starting power for your car! With a starting current of 600A and a peak current of 1200A, it can start vehicles with 6.0L gasoline and 5.0L diesel. Adopting A+grade battery cells with safety and explosion-proof protection function, making your use more secure. 2、Large capacity,-Multifunctional The large capacity of 39800mAh can meet your needs for multiple car starts and multiple charging. At the same time, it also has an Intelligent protection system-It can protect your device from issues such as overcharging, discharging, and short circuits. In addition, there are two USB charging ports and a 12V jumper starting port to meet your various charging and starting needs. 3、Emergency rescue, night lighting-The product is equipped with a strong lighting system. Press and hold the middle button for 3 seconds to turn it on, press again to switch to flash