Traxxas takes battery power to the next level with new 4-cell LiPo battery. The 6700 mAh capacity and 50C burst discharge rate deliver the power, performance, and runtime worthy of the X-Maxx^®. Checking in at over 30 volts in 8s configuration, Traxxas 4-cell LiPos will stand X-Maxx on its wheelie bar and have it catching massive air as fast as you can grab the throttle. Traxxas’ exclusive iD^® battery system is the easier and safer way to charge your Traxxas batteries. Only Traxxas gives you more of what you want most: simple installation, a great price, and the most speed and run time available.