Plug:4 Pin.
Tosiicop 6V 2400mAh NiMH Battery - RC Car Rechargeable Batteries AA with SM-2P 2 Pin Plug and USB Charge Cable for RC Truck Car Stunt Vehicles Batteries (6V 2400mAh Battery)
Tosiicop 7.2V 2400mAh NiMH Battery - RC Car Rechargeable Battery AA with SM-2P 2 Pin Plug and USB Charge Cable for RC Truck Car Boat High Speed Capacity Cars Vehicles Batteries (7.2V 2400mAh)
5000A Jump Leads Starter Power Pack 12V Car Battery Booster Portable USB Charge
For 3.7V Charger Liion Battery USB Charge Portable Smart Battery Charger 4-Slot
18650 Battery Charger - 4 Slots USB Charge for Li-ion Batteries with LED Display