Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger w/Two Power Cell 4S Batteries (6700mAh)

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Price: $299.95
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The Traxxas EZ-Peak Live "8S Completer Pack" is the perfect complement to your X-Maxx 8S system. The pack includes two 4-cell 6700mAh iD LiPo battery packs for 50+mph tire-scorching 30+volt power. Traxxas iD batteries are the easiest and safest LiPo charging solution when used with iD chargers. You just plug in your iD battery and press start. The iD charger handles all the settings and quickly gives you an optimized charge every time. The 4s capable EZ-Peak Live multi chemistry charger comes equipped with built-in Bluetooth to work with the EZ-Peak Live app for iOS and Android. The app gives you detailed information and advanced operation through a high-definition color interface. EZ-Peak Live is the most powerful, versatile, and technologically advanced charger in the popular EZ-Peak iD lineup.

The 4S LiPo delivers 6700mAh capacity and 50C burst discharge rate for power, performance, and runtime worthy of the X-Maxx. Checking in at over 30-volts in 8s configuration, Traxxas 4-cell LiPos will stand X-Maxx on its wheelie bar and have it catching massive air as fast as you can grab the throttle. Built using the same sturdy construction methods as the Traxxas 2-cell and 3-cell batteries.

NOTE: Accessing some charger features requires a mobile device with Bluetooth® capability (sold separately) and the Traxxas EZ-Peak Live Application. Available here for iOS and here for Android.



  • Charger:
    • 100-Watt 12-amp output
    • Recognizes Traxxas iD-equipped batteries to automatically program and optimize charger settings
    • LED 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
    • Supports Traxxas EZ-Peak Live Application
    • Audible alerts
    • Built-in cooling fan
    • Advanced Mode for full manual control through EZ-Peak Live App
    • Legacy support for all Traxxas High-Current Connectors
    • Built-in balance port for conventional LiPo batteries
    • Charges 5-8-cell NiMH batteries
    • Charges 2s, 3s, and 4s LiPo Batteries
  •  EZ-Peak Live App:
    • Check battery cell voltage, estimated time remaining, and mAh added
    • Configure charge settings with an easy-to-use graphical interface
    • Recognizes and remembers settings for up to 4 connected chargers
    • Pass code lock prevents access to manual mode
    • Create Battery Profiles and store commonly used settings
    • Upload firmware updates to charger to get the latest features
    • Remote monitoring and alerts for up to 4 chargers
    • iD mode may be switched off through the EZ-Peak Live Application for charging first-generation Traxxas batteries with non-iD High-Current Connectors
    • Click here for iOS App
    • Click here for Android App
  • Battery
    • Traxxas High-Current Connectors
    • Integrated LiPo Balance Charging Wires
    • Semi-Rigid Construction for efficient packaging
    • Oversized Discharge Tabs for minimum resistance
    • Hard-wired 12-gauge Maxx Cable soldered to cells
    • Center Wire Exit for guaranteed proper fitment

T R A2971 Amp Chart

    Charger Specifications:
    AC Input:
    100–240 Volts, 50-60Hz, 1.5A
    Charge Current Range: 1.0-12.0A
    Discharge Current Range: 665mAh
    Current Drain For Balance Ports: 665mAh
    NiMH Battery Cell Count: 5–8 Cells
    LiPo Cell Count: 2–4 Cells
    Net Weight: 526g
    Dimensions: 133 x 169 x 55mm

This product was added to our catalog on February 2, 2017

Sunday, Jun 17 2018 (about 3 years ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
Not a bad kit, but why does this one only have a single charging port where literally all of the other completer packs come with a dual-port charger, and Traxxas MAKES a dual-port charger for dual 4s batteries?

One star for Traxxas being a bunch of rip-off artists.
Friday, May 10 2019 (about 3 years ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
In response to Christopher these 4s battery packs will now also run in the New Traxxas Unlimited Desert Racer as a single 4s Lipo. I have the 2s and 3s completer packs for my Erevo 2.0 and the 4s completer pack for my XMaxx and both of those work with my UDR.
Thursday, Jun 11 2020 (about a year ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
Good product highly recommended shop with them today
Verified Owner
Thursday, Jul 18 2019 (about 2 years ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
People rip on Traxxas batteries. I have owned several with no problems. No not a Traxxas band wagon. I have around 30 Lipos all different. If you balance cells first and then charge all will last. Then if not in use storage charge them 50%. Rebalance every fewmonths if not used. This has worked for me. Hope it helps.
Tuesday, Feb 21 2017 (about 5 years ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
These "completer pack"s are the best way to get started. It saved me a bunch of money compared to buying individual batteries and chargers, and this one specifically allwes my X Maxx to give it all its got. Highly recommend to anyone who can fit this type of huge battery in their RC
Verified Owner
Tuesday, May 30 2017 (about 4 years ago)
Traxxas EZ-Peak Live 4S "Completer Pack" Multi-Chemistry Battery Charger
The charger is GREAT! I love the bluetooth! The problem is, these HUGE EXPENSIVE 4s lipos don't fit anything besides Xmaxx! I don't see why Traxxas would shoot themselves in the foot and make this lips ONLY for Xmaxx. I have several other 4S similar Mah too. VERY disappointed. I have had nothing but good experiences with Traxxas lipo's. The subtraction of stars is ONLY because the batteries are too big!!$140 for a 1 vehicle lipo?!? No Way!!