Excellent dash cam battery pack with a 51.2 Wh capacity, LCD display, USB-A and USB-C outputs Avoid draining the vehicle's battery by utilizing an external battery pack for parking recording LiFePO4 technology safe for hot environments Fast charges via hardwire cable in 33 minutes at 8A, 65 minutes with cigarette adapter at 4A Good for up to 16 hours of parking recording on a 2CH dash cam Battery pack function for external devices, can be removed from the car as backup power for smartphones, etc. via USB ports Built-in LED emergency light function Specs Capacity: 12.8V 51.2 Wh (4500 mAh) Output voltage 12-14.2V @ 3A max 8.7cm x 16cm x 3.8cm 0.75kg weight Operating temperature -10°C - 60°C 1 Year manufacturer warranty