This product would be ideal for model boat enthusiasts who want to efficiently charge their boats' 7.4V batteries on the go using a USB port.
Heng Long 1/72 RC Tugboat 2.4G Long Range Wireless Control Tugboat Model Lights
HENG LONG 1/72 TUGBOAT 686 600mAH 3.7V LI-ION BATTERY HL3800-003 C
HENG LONG TUG WORK BOAT LI-ION 1800mAH 7.4V BATTERY PACK HL3810-002
HENG LONG SALINA 8.4V NIMH BATTERY PACK HL3867-002 C
HENG LONG SALINA 2-CHANNEL POWERED YACHT 700MM RTR HL3867 C
HENG LONG SNIG RESCUE RTR BOAT BRUSHLESS 320MM LENGTH WHITE HL3702-W
