Lumenier 2250 mAh 3S 35C Lithium Polymer Battery with XT60 Connector and Connector Cover Lumenier's LiPo offering for 400-540 class quadcopters like the QAV400, QAV500, QAV540G 2250 mAh 3S (11.1v nominal) Lithium-Polymer battery with an XT60 connector High performance discharge rate of 35C constant or 70C burst! Includes XT60 cover to prevent shorts in storage 105mm x 32mm x 23mm, 170g weight