Blomiky 2 Pack 7.4V (2 x 3.7V) 600mAh Li-ion Battery with SM-4P Plug for Old Version UDI008 UD08 UDI001 Venom Speed RC Boat UDI001 Battery 2
Brand: Blomiky

SM-4P 4 pin Connector Plug, When battery plug convex side on above, flat side below, first and third pin is positive, second and forth pin is negative. make sure your battery is same. or see image 2.
7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for Cheerwing Venom Black and orange RC Boat.
7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for UDIRC UDI001 UDI008 UD08 UD008 Yellow Black orange RC Boat.
7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for Altair Altair MidSize AA Wave RC Remote Control Boat

Package include:
2 x Battery
2 x USB Charger cable

SM-4P 4 pin Connector Plug, When battery plug convex side on above, flat side below, first and third pin is positive, second and forth pin is negative. make sure your battery is same. or see image 2.
USB charger cable built-in over-charged IC circuit protection,Red ligth is solid when charging, change to green light solid after full charged.7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for Cheerwing Venom Black and orange RC Boat.
7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for UDIRC UDI001 UDI008 UD08 UD008 Yellow Black orange RC Boat.
7.4V 600mAh Li-ion rechargeable battery with SM-4P plug fit for Altair Altair MidSize AA Wave RC Remote Control Boat
Package include: 2 battery and 2 USB charger cable