Traxxas 2820X 2950 Series 4 7C 7200 Flat w/Traxxas

This is the Traxxas 7-Cell 8.4V 4200mAh 4 Series
iD Power Cell NiMH Stick Battery Pack.

FEATURES:
New high existing port with gold-plated copper terminals
iD Automobile Battery Recognition enables Traxxas iD geared up battery chargers to
    automatically set and optimize charge settings
MAXX cable television high-efficiency 12 gauge silicone jacketed wire
Sub C size cells

INCLUDES:
One 7-cell 8.4V 4200mAh 4 Series iD Power Cell NiMH Stick Pack with
    High-Current Port

REQUIRES:
Peak-detection battery charger

SPECS:
Length: 6.3" (160mm)
Width: 1.7" (44mm)
Height: 0.94" (24mm)
Weight: 17.5oz (495g)
Charge Rate: 3A