The Drift Innovation HD Ghost Cradle Battery Charger charges your HD Ghost Camera through your vehicle"s 12V outlet or household wall socket. The charger provides added flexibility by allowing you to record while your camera is being charged; ensuring continuous power while shooting video from your car. To operate the charger, simply plug the adapter end into your car"s 12V outlet or household wall socket and connect the USB cable to your camera. Lumincescent charging ray indicates power connectivity on the charger will keep you informed of the charging status. Completely charges your camera in about 4 hours.