This is for the Traxxas EZ-PEAK DUAL Charger & (2) 5800mAh 2s 7.4v LiPo packs with iD connectors.

You get (1) TRA2972 Traxxas EZ-Peak DUAL iD Battery Charger with AC power cord
You get (2) TRA2843x Traxxas 5800mAh 2s 7.4v LiPo packs with w/iD Connectors.

EZ-PEAK DUAL Charger:
Traxxas’ exclusive iD technology eliminates complicated charger programming by automatically configuring and optimizing the charge settings for Traxxas iD batteries. The EZ-Peak Dual charges two batteries simultaneously at up to 50 watts (4-amps) each, or switch to High-Output mode to charge a single battery at the maximum 100 watt (8-amps) output. Charging faster means more fun time behind the wheel. You can even charge a NiMH and a LiPo at the same time! The progress bar and audible alerts keep you informed while the advanced high resolution peak detection delivers a perfect charge every time. The EZ-Peak Dual’s Storage Mode protects your LiPo battery investment by safely preparing the batteries for extended storage.

2843x Specs
Type: Lipo
Capacity: 5800mAh
Voltage: 7.4v
Length: 135mm (5.31")
Width: 45mm (1.77")
Height: 25mm (0.98")
Weight: 289g (10.2oz)

The Traxxas 2843x fits in the following Traxxas Vehicles.
Rustler
Bandit
Stampede
Stampede 4x4
Telluride
Bigfoot
1/10 Slash
1/10 Slash VVL
1/10 Slash 4x4
E-Maxx
E-Maxx Brushless
E-Revo
E-Revo Brushless
Summit
Spartan
X-Maxx

Brand new in the boxes as shown below.