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Traxxas 2849X 3-Cell LiPo Battery 4000

  • Based on 567 reviews
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Availability: In Stock.
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Arrives Thursday, May 14
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Features

  • Traxxas 2849X - Power Cell 3S 11.1V LiPo Battery, 25C 4000mAh, iD Connector
  • Features: 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 New high current connector with gold-plated copper terminals and integrated balance connector iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings for specific battery MAXX cable high-efficiency 12 gauge silicone jacketed wire
  • Includes: (1) Battery with High Current Connector
  • Specs: Configuration: 3S1P Continuous Discharge: 25C (100A) Max Burst Rate: 50C (200A) Watt Hours: 44.40 Charge Rate: 1C (4A) Dimensions: 5.3 x 1.02 x 1.7" (135 x 26 x 43mm) Weight: 11.1oz (316g)
  • Part number(s) included (in factory packaging): 2849X

Description

This is the Traxxas Power Cell 11.1V 4000mAh 25C 3S LiPo Battery. Features: 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. New high current connector with gold-plated copper terminals and integrated balance connector. iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings for specific battery. MAXX cable high-efficiency 12 gauge silicone jacketed wire. Includes: (1) Battery with High Current Connector and Integrated Balance Plug Requires: LiPo compatible charger such as the Traxxas EZ-Peak Plus LiPo charging bag Specs: Configuration: 3S1P Continuous Discharge: 25C (100A) Max Burst Rate: 50C (200A) Watt Hours: 44.40 Charge Rate: 1C (4A) Dimensions: 5.3 x 1.02 x 1.7" (135 x 26 x 43mm) Weight: 11.1oz (316g)

Number of Batteries: 1 Lithium Polymer batteries required. (included)


Brand: Traxxas


Battery Cell Composition: Lithium Polymer


Battery Capacity: 4000 Milliampere Hour (mAh)


Recommended Uses For Product: Traxxas Car , Trucks


Number of Batteries: 1 Lithium Polymer batteries required. (included)


Brand: Traxxas


Model Number: 2849X


Model Name: 2849X


UPC: 013048004992


Manufacturer: Traxxas


Battery Cell Type: Lithium Polymer


Battery Capacity: 4000 Milliampere Hour (mAh)


Voltage: 11.1 Volts


Reusability: Rechargeable


Amperage: 100 Amps


Unit Count: 1 Count


Battery Weight: 0.7 Ounces


Item Dimensions: 1.5 x 1.5 x 1.5 inches


Item Weight: 0.01 Ounces


Antenna Location: Traxxas Car , Trucks


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great little battery
Got this for my sons toy and works great! Good quality for the price and has a good battery life.
Reviewed in the United States on December 11, 2025 by Mattie

  • ok
Oi
Reviewed in the United States on March 1, 2025 by Cory

  • The best choice at this time
The problem with Traxxax batteries is they swell up overtime and then won’t fit in the battery slot on the car
Reviewed in the United States on January 1, 2021 by Michael Ratcliff

  • Great battery!
Great battery! I average 28-32min running my Rustler Vxl 2wd.
Reviewed in the United States on April 13, 2020 by Jeff

  • Good buy
I like that it's very durable
Reviewed in the United States on May 24, 2021 by Sunrize

  • Strong battery
Better speed
Reviewed in the United States on December 19, 2020 by Michael Senn

  • Good so far
Good so far
Reviewed in the United States on January 18, 2019 by Keith

  • Probably OK, If You Have A Traxxas Charger
It's probably my fault for not looking into the specs further, but this requires a Traxxas charger. The battery does not have a balance plug, so my 4 station charger will not work, unless you go to significant lengths to modify the battery or risk a battery fire charging unbalanced. I already have multiple chargers and many other batteries. I refuse to buy another charger. Maybe if I did not already have so much invested, I would go all-in on Traxxas batteries and chargers to avoid the balance plug hassle, but too late for that. ... show more
Reviewed in the United States on June 7, 2022 by Thunder Flash

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