Amazon.co.jp: Genuine FUTABA LiFe Battery for Transmitter 6.6V-1700mAh & AC 100V Charger Set 10PX,7PXR,7PX,7XC,4PX,4PKS,4PK,4PM,4PV,3PV,18SZ,16SZ,14SG,12K,10J,8J,6J 6K and others sold separately Item : Toys & Games
FUTABA HT5F1800B 6.0V 1800mAh Ni-MH Battery 4PX 4PKS 4PLS 14SG 16SZ 10J 8J 6J - The World Models