Amazon.com: HOOVO 7.4V 5200mAh 80C 2S Lipo Battery Hard Case with EC3 Plug for Popular RC Car RC Helicopter Quadcopter UAV Drone FPV Tracxas Slash Buggy Team Associated(2 Packs) : Toys &
Amazon.com: Rechargeable Lithium Ion Battery Pack - VIDAR 7.4V 5200mAh High Capacity Li-ion Battery Pack with JST PH2.54/2P Plug-in(Customizable) for Electronics,Toys,Lighting,Equipment : Health & Household