This is the Traxxas 3S Battery & Charger completer pack, featuring a TRA2970 EZ Peak Plus 4-Amp iD charger and a TRA2849X 4000mAh 11.1V LiPo battery. The Traxxas EZ-Peak Plus is one of the easiest and safest options for keeping your batteries charged. The EZ-Peak Plus can recognize any Traxxas iD battery, allowing it to quickly configure and optimize charger settings for your battery pack. You don't need to be a battery expert; just plug in a Traxxas iD battery and the EZ-Peak Plus does all of the work! And with the included battery, you'll have everything you need to power your RC vehicle through any situation!
Includes:
1x Traxxas EZ-Peak Plus 4-Amp iD Charger
1x Traxxas 4000mAh 11.1V (3S) LiPo Battery
Features:
Traxxas EZ-Peak Plus Charger:
The Traxxas iD battery system is the easiest and safest way to charge your Traxxas batteries.
Automatically recognizes Traxxas iD batteries and in an instant configures and optimizes the charger settings.
The integrated balance connector on Traxxas LiPo iD batteries eliminates fragile balance wires and connectors, along with the need for external balance boards.
With the press of a button, the EZ-Peak Plus' Storage Mode protects your LiPo battery investment by safely preparing the batteries for extended storage.
4-amp fast charging and advanced high-resolution peak detection deliver a perfect charge every time.
Backed by the Traxxas Lifetime Electronics Warranty for years of reliable service.
Recognizes Traxxas iD batteries to automatically program and optimize charger settings
Charge progress indicator
Optimized for faster LiPo balance charging
One button LiPo storage charge protects your battery investment
Advanced high-resolution peak detection delivers a perfect charge
Easy to use interface
Built-in cooling fan
Advanced Mode for full manual control of charger settings
Legacy support for all Traxxas High-Current Connectors
Built-in balance ports for conventional LiPo batteries
Charges 5-8-cell NiMH batteries
Charges 2S and 3S LiPo batteries

Traxxas 4000mAh 11.1V 25C LiPo Battery:
iD Technology
Semi rigid construction does not require a hard case and eliminates wire harness connectors that can loosen and fail
Engineered specifically to fit Traxxas models
12AWG multi strand wire is soldered directly to the LiPo cells eliminating increased resistance from bullet connectors and accidental reversed polarity connections
Specs:
Traxxas EZ-Peak Plus Charger:
AC Input: 100—240 Volts
Charge Current Range: 1.0-4.0A (40W Max.)
Discharge Current Range: 500mAh
Current Drain For Balance Ports: 500mAh
NiMH Battery Cell Count: 5—8 Cells
LiPo Cell Count: 2—3 Cells
Net Weight: 365g
Dimensions: 146 x 123 x 53mm

Traxxas 5800mAh 7.4V 25C LiPo Battery:
Total Capacity: 4000
Voltage: 11.1
Continuous Discharge: 25C (100A)
Max Burst Rate: 50C (200A)
Watt Hours: 44.40
Max Charge Rate: 2C (8A)
Dimensions: 135x26x43mm
Weight: 11.1oz (316g)