11.1V 3 Cell 6400 mAh Lipo Battery 2857X

 
TRAXXAS CERTIFIED LIPO POWER! Traxxas Certified iD-Equipped LiPo batteries are 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. Only Traxxas gives you more of what you want most: simple installation, a great price, and the most speed and run time available
 
6400mAh 11.1v 3-Cell 25C LiPo Battery