Safe and effective protection: overcharging, discharging, overheating, Short circuit protection Larger Capacity Battery:3800mAh.The extended working time of your favourite walkie talkie is almost 2 times longer than original 1800mAh battery Comprehensive testing: including high altitude performance, mechanical shock, thermal cycling, vibration, external short circuit and overcharge test simulations Support Type-C Charging: with wired charging port, It can be charged anytime and anywhere with a Type-C ChargerIt is portable, you can easily carry it with them Compatible: UV-17 / UV-17 Pro / UV-17 Pro V2 / UV-17 Pro V1 / UV-17Pro GPS / UV-17 V2 / UV-17 Pro L / UV-17 Plus / UV-17 Pro / UV17 Max / UV-17 Max V2 / UV-17 / UV17L / UV-17 Pro Max. If you have any questions about compatible models, please feel free to contact us Brand: BAOFENG Capacity: 3800mAh Battery Type: Li-ion Battery Voltage: 7.4V Compatiable with: UV-17 / UV-17 Pro / UV-17 Pro V2 / UV-17 Pro V1 / UV-17Pro GPS / UV-17 V2 / UV-17 Pro L / UV-17 Plus / UV-17 Pro / UV17 Max / UV-17 Max V2 / UV-17 / UV17L / UV-17 Pro Max