Lumenier 1000 mAh 4S 35C Lithium Polymer Battery with XT60 Connector and Connector Cover 1000 mAh 4S (14.8v 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 70mm x 35mm x 24mm, 122g weight