Amazon.com: Zeee Premium Series 3S Lipo Battery 4200mAh 11.4V High Voltage Shorty Battery 120C with XT60 Plug Soft Case HV Lipo Compatible with Rock Crawler Helicopter Airplane Drone Boat Racing Models(2 Pack) :
Reedy WolfPack 3S Hard Case Shorty 30C LiPo Battery (11.1V/3000mAh) [ASC759] | eBay