Capacity: 3600mAh; Battery Cell: Li-ion Battery Support USB-C Charging: It’s convenient you go camping and other outdoor activities. The indicator light allows you to check the charging status at any time. Red light: Charging. Green light: Fully charged. Safety Ensured, Effective Protection: Over-charge, over-discharge, over-heat, over-current and amp, short-circuit protection. Compatible for various radio models, including DMR MD-390 MD-UV390 GPS MD-UV390 RT81 RT50. Package Including: 1*3600mAh MD-390 battery (Support USB-C Charging) 100% Brand New Original TYT 7.4V 3600mAh USB-C Li-ion Battery