Eurus 1700mAh Ni-MH FNB-47 FNB47 FNB41 Battery Replacement for Yaesu Vertex FT10 , FT40 , FT50 , VX10 , FT10R , FT40R , 40R , FT50R , 50R Two Way Radio Ni-MH Battery; 1700mAh HighCapacity; Voltage: 7.2v; The battery is completely compatible with batteries of smaller capacity; 100% compatible with Original Battery and Charger devices; TV and ISO-9001:2000 Certified.