This is a Traxxas 2960X 7C Flat 5000mAh NiMH Traxxas ID. Features: This is the Traxxas 5000mAh 8.4V 7-Cell NiMH Flat Battery Pack with iD Battery Connector. This battery is perfect for vehicles like the Slash XL-5, Slash VXL, Slash 4x4, E-Maxx, E-Revo, Summit, 1/10 Rally, and other vehicles. Experience the longest run times and highest sustained voltage under load, ideal for peak performance in power-hungry models. The 5000mAh battery will increase your run-time by approximately 65% over stock 3000mAh batteries. Traxxas Power Cell Battery Packs are optimized for free-flowing power and maximum punch with premium quality, low-resistance cells; flexible, silicone-jacketed 12-gauge wire; heavy-duty welded tabs; and Traxxas' high-output, gold plated, high-current iD connectors. Precision assembly with attractive, individually wrapped cells and clear overwrap complete the package.