Maxpro Battery Lipo 5C 7.4V 2800mAh
Height: 18 mm. Width: 40 mm. Weight: 102 g. Length: 70 mm. Voltage: 7.2 V (2S) Capacity: 2800 mAh
Compatible with Futaba TX: T4PLS, T4GRS, T4PKS/R, T4PX/R, T6J, T6K, T8J, T10J, T14SG y T18SZ
You maybe will need a this charger