7.4V 1500mAh Rechargeable Li-ion Battery for UDI R/C UDI007 Voyager / UDI002 Tempo Speed Boat  (Geniune UDI) 2 PACK Apply to UDI007 and UDI002 Voyager Remote Control Boat important note: not fit to UDI001 model. li-ion 18650 1500mAH 7.4v Geniune UDI replacement battery