This is the Traxxas Series Four 8.4 V NiMH 4200mAh 7 C Hump Battery Pack.

Features:

• MAXX cable high efficiency 12 gauge silicone jacketed wire
• Sub C size cells
• iD auto battery identification
• Atuomatically set and optimize charge settings with traxxas iD equipped chargers
• Updated high current connector with gold plated copper terminals

Includes:

• One Traxxas Series Four 8.4 V NiMH 4200mAh 7 C Hump Battery Pack

Requires:

• NiMH capable charger

Specs:

• Length: 140mm (5.5″)
• Width: 48mm (1.9″)
• Height: 45mm (1.8″)
• Wire Size: 12AWG
• Charge Rate: 3A