Traxxas ID LiPo Battery - 5000mah 11.1v 3S 25C - 155x26x44mm

Brand: Traxxas

Part Number: TRX2872X

£63.86 Web Price RRP £70.95

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This is the Traxxas 3S, 11.1V, 5000mAh, 25C Power Cell Li-Poly Battery Pack with iD Traxxas Connector. This battery requires a Traxxas iD equipped LiPo charger to balance-charge!

All Traxxas iD Power Cell Battery Packs are optimized for free-flowing power and maximum punch with premium quality, low-resistance cells; flexible, silicone-jacketed 12-gauge wire; heavy-duty welded tabs; and patented Traxxas high-output, gold plated, High-Current Connectors.

High-Current Connector
Revolutionary concepts come in all shapes and sizes, and the patented Traxxas High-Current Connector defines the new standard for efficiency, ease of use, and high-current handling. On iD-equipped Traxxas LiPo batteries, the balance connectors are integrated into the Traxxas High-Current Connector eliminating fragile balance wires and connectors, along with the need for external balance boards.

Charging with a Traxxas iD Charger
The Traxxas iD battery system is the easiest and safest way to charge your Traxxas batteries. The EZ-Peak Plus (TRA2970) recognizes Traxxas iD batteries and in an instant automatically configures and optimizes the charger settings. Theres no need to be a battery expert or learn how to navigate complex menus. Just plug in a Traxxas iD battery and EZ-Peak Plus does all the work for you.


  • Semi-Rigid Construction: Traxxas Power Cell LiPO packs use a unique construction method that results in a firm, rugged, and compact pack that does not require a hard case. This allows Power Cell LiPos to offer greater capacity in a given size, and also allows the user to easily monitor the condition of their battery. Unlike a hard-cased pack, if a Power Cell LiPo puffs or softens due to damage or abuse, the user can easily see and feel the change in the pack. Plus, there are no wire harness connectors that can loosen and fail over time.
  • Oversized Discharge Tabs: Power Cell LiPos are constructed of premium cells with extra-wide discharge tabs. The discharge tabs are the actual contact points between the cells, so maximizing their surface area is critical to maximize pack performance. Power Cell LiPOs extra-wide tabs ensure minimum resistance so more power and capacity is delivered on every run.
  • Hard-Wired for Maximum Durability and Performance: Power Cell LiPo packs feature High Current Connectors with 12-gauge Maxx Cable wire, soldered directly to the LiPo cells. Bullet connectors found on other packs introduce additional connections, increase resistance, and allow accidental reversed-polarity connections. Power Cell LiPos rugged, hard-wired connection minimizes resistance to make sure all the power from your battery is used for greater speed and longer run times.
  • Maxx Cable: Every component of a battery pack contributes to its performance—and that includes the wires. Traxxas Maxx® Cables 12AWG multi-strand wire offers extremely low resistance so power is not wasted as heat, and the fine strands allow excellent flexibility for easy installation and reduced stress on the packs solder joints. Soft, silicone insulation protects against shorting without compromising flexibility. Maxx Cable is simply the finest and most efficient wire available, and the only wire good enough for Traxxas Power Cell battery packs.
  • Center Wire Exit: Traxxas LiPo packs have a center wire exit to properly fit Traxxas models with wire reliefs in the chassis. You get perfect battery fit without crushed wires or cut insulation—that means longer life for your LiPo battery.
  • Factory Fit: Traxxas Power Cell LiPos are designed to fit Traxxas models so you get the most capacity possible. Forget the foam blocks! Special 7-Cell sized pack configurations maximize the capacity in your Slash, Slash 4x4 and other Traxxas models. The wires exit from the center of the pack to line up with the relief channels in Traxxas chassis for a pinch-free fit. There are packs for every Traxxas vehicle, each guaranteed to fit properly and deliver the performance built into our models.


  • Type: LiPo 
  • Total Capacity: 5000 
  • Voltage: 11.1 
  • Continuous Discharge: 25C (125A) 
  • Max Burst Rate: 50C (250A) 
  • Watt Hours: 55.5 
  • Charge Rate: 1C (5A) 
  • Max Charge Rate: 2C (10A) 
  • Dimensions: 155x26x44mm 
  • Weight: 13.3oz (376g)

NOTE: This battery requires a Traxxas iD equipped LiPo charger to balance-charge! 

  • Brand: Traxxas
  • Part No: TRX2872X
  • Voltage: 3S - 11.1v
  • Fitment: Option Part
  • Case Type: Soft Case
  • Connector: Traxxas

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No reviews yet!
Will this fit a hpi vorza.thanks.
Asked by Majid Akbar on 9th March 2017
No, it's a little too large sorry

Answered by: Ben @ Wheelspin Models

Will this fit my Stampede VXL 4*4?
Asked by Dipak Solanki on 7th April 2017
No, this is too large for your Stampede.

Answered by: Ben @ Wheelspin Models

Will it fit a trx 4 traxxas Land Rover
Asked by Aston on 1st January 2018

Yes this will fit the TRX4

Answered by: Ben @ Wheelspin Models

How many minutes can I use this with a slash 4x4?
Asked by Luca on 22nd January 2018

We'd estimate around around 25 minutes runtime on a Slash 4x4

Answered by: Ben @ Wheelspin Models

would this battery work with the traxxas E-maxx 6s brushless version
Asked by James Mcbride on 9th April 2018

Yes, you would use two of these in the E-MAXX brushless 6S.

Answered by: Ben @ Wheelspin Models

Will this fit e revo brushed 1/16?
Asked by Toby Cherry on 20th May 2018

No - it's way too big.

For the 1:16 revo you want to look at TRX2820X for 2S or TRX2823X  for 3S

Answered by: Ben @ Wheelspin Models

What is the biggest lipo I can fit in a rustler vxl?
Asked by Kai Cooper on 13th October 2018

Biggest in terms of capacity is the 2S 10000mah TRX2854X which will also require the TRX3725X battery expansion kit.

Biggest on 3S (higher speed) would be the TRX2857X 6400mah 3S which would also require the TRX3725X battery expansion kit.

Answered by: Ben @ Wheelspin Models

what would be the recommended battery for my trx4
Asked by Andy on 30th June 2019

There are many batteries that will fit the TRX4.  This one will fit no problem.

Answered by: Ben @ Wheelspin Models

Will this fit in a slash 4x4 with no battery expander? Thanks
Asked by Luke on 14th January 2020

Yes, according to Traxxas it doesn't need the battery expansion kit in the 68086-4 Slash 4x4:

Answered by: Ben @ Wheelspin Models

Will this fit in a rustler 4x4 vxl?
Asked by Jere on 23rd April 2020


Answered by: Ben @ Wheelspin Models

Will this fit my Erevo 2.0 and also what would the run time be on it? Thanks
Asked by Mark Sinden on 27th April 2020

Yes they will fit. Runtime maybe around 25 mins or so depending on your driving style.

Answered by: Ben @ Wheelspin Models

Hi, will this fit rustler VXL 2WD with no battery expander? Thanks
Asked by Fernando on 22nd July 2020

No sorry.

Answered by: Anthony @ Wheelspin Models

Will the 2872X Traxxas Battery fit in a Rustler VXL TSM (37076), without any modifications?
Asked by Louisa Griffiths on 17th November 2020

Yes, according to Traxxas (at ) that should fit OK 

Answered by: Ben @ Wheelspin Models

Is it possible to charge this battery safely with a non-Traxxas brand Lipo charger (lie ET0202)? All my other batteries have Deans connectors, so would a convertor lead work or does it need the balancer?
Asked by Matthew on 17th March 2021

Not easily done I'm afraid. TRX2938X is a starting point, but would still need modification to work with most chargers.

By far the easiest and safest way is with a proper Traxxas charger I'm afraid

Answered by: Ben @ Wheelspin Models

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