1/2units Zeee 2S 7.4V 50C 5200mAh Lipo Batteries Hard Case with T Plug – RCDrone
7.4 Volt Lithium Ion Battery Pack (5200 mAh) with Protection IC
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
Amazon.com: Zeee 2S 5200mAh Lipo Battery 7.4V 50C Hard Case with Deans T Plug for RC Truck RC Truggy RC Heli Airplane Drone FPV Racing (1 Pack) : Toys & Games