VTR BP Parking Mode Battery Saver Harness for Dash Cams - Protect Your Car Battery During Long Parking - Perfect for Road Trips and Security Surveillance

Battery protector for USB mobile devices. Connect the battery protector to the battery (constant current) and connect a USB power cable of your mobile device to the USB outlet of the battery protector. The battery protector will cut the battery off when the battery reaches the level with a charge enough to start the car.

For use with cellphones, dashcams, mobile DVRs, etc.