4200 mAh 8.4 Volt 7-Cell NiMH Battery

Traxxas 4000-series Power Cell NiMH battery packs provide 25% greater capacity than 3000-series batteries for longer run times and higher sustained voltage under load. Low-resistance cells, flexible, silicone-jacketed 12-gauge wire, heavy-duty welded tabs, and Traxxas' exclusive iD^® battery system deliver an easier and more rewarding battery experience for your Traxxas model.