This is a 2-cell, 1700mAh LiFe Transmitter Battery for a wide range of Futaba transmitters, such as the 3PV, 4GRS, and 4PK. It offers approximately 500 charge/discharge cycles.
Compatible Futaba Transmitters
3PV, 4GRS, 4PK, 4PKS, 4PKS-R, 4PL, 4PLS, 4PM, 4PV, 4PX, 4PX-R, 6J, 6K, 7PX, 7PX LE, 8J, 10J, 12K, 14SG, 16SZ, 18SZ, and 18SZ 70th anniversary edition