Retevis RT-5R Battery Eliminator Car Charger Compatible Baofeng UV-5R Retevis RT-5R RT-5RV Walkie Talkies (1 Pack) Keep charged up battery pack ready for use at your destination during driving; save your battery when using the radio in the car Allowing keep the radio on without deleting the battery pack Replaces your radios stock battery while in the vehicle to direct DC power your radio Input voltage 7.2V ~ 13.8V; Output voltage 7.4V Simple and Convenient return process; 60 days warranty provide by us and 30 days no reason to return