This is the Traxxas "Series 5" 7-Cell 8.4V NiMH Flat Battery Pack with Traxxas Connector. Traxxas Power Cell Battery Packs deliver all the high-speed power and fun that's engineered into each Traxxas electric model. With a 5000mah Series 5 NiMH battery pack, there is even more run-time and ''punch'' at your finger tips, with the rugged construction and durability that Power Cell NiMH packs are known for. The 7-cell Series 5 pack boosts performance with 8.4 volts of tire-spinning, wheelie-popping, high-speed power!
Traxxas Series 5 Power Cell batteries feature the latest 5000mah NiMH cells, and are optimized for free-flowing power and maximum performance with premium quality, low-resistance cells; flexible, silicone-jacketed 12-gauge wire; heavy-duty welded tabs; and Traxxas' high-output, gold plated, high-current connectors. Precision assembly with attractive, individually wrapped cells and clear overwrap complete the package. Experience faster acceleration, higher top speeds, and Traxxas quality and support with the only nickel chemistry batteries engineered specifically for Traxxas models.
Series 5 Power Cell Features:
7-cell packs boost power to 8.4 volts!
Heavy-duty construction to withstand high-current output
Includes efficient Traxxas High-Current Connector for most efficient power transfer
12-gauge wires with flexible silicone insulation
High-voltage, low-resistance cells deliver maximum run time and "punch‟
Traxxas-certified to offer maximum performance in Traxxas models