2095 11.1v 2200mAh Lipo Battery for Water Gun 3S 11.1V battery for Mini Airsoft BB Air Pistol Electric Toys Guns Parts|Rechargeable Batteries| - AliExpress
High Power Polymer Battery: 11.1V 3000mAh 10-12 C Discharge Rate (34.41Wh, w/o PCB) for RC Racing (2.7)
LiPo 11.1V 1200 mAh 25/50C Butterfly Battery - shop Gunfire