Amazon.com: Zeee 6S Lipo Battery 4000mAh 22.2V 100C with EC5 Connector Soft Pack Battery for RC Airplane Helicopter RC Car Truck Tank Drone Racing Hobby(2 Pack) : Toys & Games
3.7v 4000mah Lithium Polymer Lipo Rechargeable Battery Cell For Mp3 Power Bank Psp Laptop Notebook Pad Protable Tablet Pc 805080 - Rechargeable Batteries - AliExpress