Type-C Charging: With wired charging jack. It can be charged here and there with a Type-C Charger; USB-C charging brings more convenience. Compact and lightweight portability; Great spare battery when you go camping or other outdoor activities. About Protection: There are current overload protection, leakage protection, over charge protection and over current pretection can be assured to use. Compatible with GM-5RH/UV-5G Plus GMRS/UV-5RM/UV-5RH Pro Max/UV-5RH Pro/BAOFENG K5Plus/BAOFENG K5 Pro Max. If you have any problems with compatible models, please feel free to reach out. Package Including: 2 packs UV-5RM 2500mAh batteries Warranty: 3 months warranty provided only through "Shiqun Electronics Co., Ltd". Brand: BAOFENG Model:BL-5RH Voltage: DC 7.4V