Baofeng 7.4V 3800mAh Li-ion Battery for Baofeng GT-3 & GT-3TP Oirginal Replacement Battery for Baofeng GT-3/ GT-3TP Two-way Radio. Compatible Model: Baofeng GT-3 Mark II, GT-3TP Mark III Capacity: 3800 mAh, Voltage: 7.4V Radioddity is the only authorized US BaoFeng Distributor to honor the Manufacturer Warranty.