About Protection: There are current overload protection, leakage protection, over charge protection and over current pretection can be assured to use Compatible with BAOFENG GT-3/GT-3TP/GT3/GT3TP, if you have any problems with compatible models, please feel free to reach out. Package Including: 1 pack 3800mAh GT-3TP battery Type: Li-ion Battery Voltage: 7.4V Compatible with BAOFENG GT-3/GT-3TP/GT3/GT3TP, if you have any problems with compatible models, please feel free to reach out. Capacity: 3800 mAh