Search  for anything...

Traxxas 2849X 3-Cell LiPo Battery 4000

  • Based on 567 reviews
Condition: New
Checking for the best price...
$74.95 Why this price?
New Year Deal · 4% off was $77.98

Buy Now, Pay Later


As low as $12.49 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Jan 26
Order within 22 hours and 59 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

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


Product Dimensions: 1.5 x 1.5 x 1.5 inches


Item Weight: 0.01 ounces


Item model number: 2849X


Manufacturer recommended age: 12 years and up


Batteries: 1 Lithium Polymer batteries required. (included)


Is Discontinued By Manufacturer: No


Manufacturer: Traxxas


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 26

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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

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

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

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

  • Fits 2wd stampede with no modifications
Working out great in my 2wd stampede. Thank you for your service
Reviewed in the United States on April 9, 2019 by Rubina Husain

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...