This is the Traxxas Power Cell Series 5 5000mAh 8.4 Volt 7C Flat Nickel Metal Battery Load with Automobile Battery ID Technology.
New iD-Equipped Power Cell batteries deliver unmatched speed, acceleration and power in all Traxxas cars, trucks, and boats
Premium quality, low-resistance cells; flexible, silicone-jacketed 12AWG wire; heavy-duty welded tabs; and Traxxas' High-Current Connectors
Series 5 Power Cell batteries feature the latest 5000mAh NiMH cells for peak performance in power-hungry models
Precision assembly with attractive, individually wrapped cells and clear overwrap complete the package
Traxxas capacity ratings reflect the minimum capacity for the pack, not the maximum