Jsdufs 7.4V 1200mAh RC Battery Rechargeable Battery for Model Making Cars Airplane Robot (Toy/Toy) 18650 Battery Pack and Charger Plug : Amazon.co.uk: Toys & Games
Amazon.com: 7.4V 1500mAh li-ion Battery SM Plug for H105 H103 H101 Remote Control RC Boat 2 Pack with USB Charger : Toys & Games