Traxxas 2S "Power Cell" 25C Lipo Battery w/iD Traxxas Connector (7.4V/5000mAh)This is a Traxxas 2S "Power Cell" 25C Lipo Battery with iD Traxxas Connector, a certified iD Equipped LiPo battery that is engineered to provide the punch and on demand power for reaching the top speeds that Traxxas models are built to achieve. Traxxas Power Cell iD Equipped LiPo batteries are engineered specifically to fit Traxxas models and maximize their full performance potential. Traxxas delivers you more of what you want most: simple