Zeee 12S Lipo Battery 5200mAh 44.4V 100C with EC5 Connector Soft Case Battery for Large Scale RC Helicopter Airplane RC Car Vehicels RC Trucks Racing Models : Amazon.ca: Toys & Games
Powerhobby 12S 44.4V 5200mah 100C Lipo Battery FOR 700-800 Heli / Helicopter | eBay