Anstoy 7.4V Li-ion Battery 1200mAh Rechargeable SM-4P Plug Charging/Using Integration with USB Charger Cable Gel Blaster Accessories for Remote Control RC Boat Car (2-Pack): Amazon.co.uk: Toys & Games
7.4V 1500mAh Li-ion Battery Pack 15C SM Plug for RC Cas Boat Spare + USB Charger | eBay
7.4V Li-Ion Battery Charger
7.4V Two Step Lithium Battery Charger Circuit - CC and CV Mode : 9 Steps - Instructables
ZYGY 2PCS 7.4V 500mAh SM-4P Plug Rechargeable Battery with USB Charging Cable for EC16 DE85 RC Toy Car Model Buggy Battery M416 Electric Gel Ball Blaster Spare Battery: Amazon.co.uk: Toys & Games
Yangers 2 Pack Li-ion rechargeable battery 7.4V 2000mAh 2S 20C T plug female connector with USB charger for RC car off road truck jumper WLtoys: Amazon.co.uk: Toys & Games