Traxxas Certified iD®-Equipped LiPo batteries provide the punch and on-demand power to reach the top speeds that Traxxas models are built to deliver. 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. This battery is designed specifically to work with th TRX-4M series of vehicles.