Vant Batteries offer an excellent value by providing factory direct pricing and quality that meets or exceeds that of other major battery manufacturers. Vant Batteries go through strict testing and quality control procedures in order to provide extremely accurate mAh, Voltage, and C ratings. Don’t let their low cost fool you, these batteries outperform major manufacturers batteries!!

This is an OEM replacement battery for the Traxxas 2857 battery. It has the same Voltage and Similar Size. It has a higher mAh rating for increased run-time. It also has a much higher C-Rating for more power output and motor response.


  • True Capacity and C-Rating
  • Thick 10AWG Discharge Leads
  • Traxxas High Current Style Connector
  • JST-XH Balance connector

6 Month Warranty: Vant Batteries are warranted to be free from defects upon delivery to the customer. They are warranted against failure for a period of 6 Months from the date of purchase. Crash damage, over-charging, over-discharging and other misuse by the customer is not covered in this warranty. In the event of a warranty replacement, shipping costs will be waived for the first 2 weeks of ownership. After which the customer is responsible for the shipping cost of the replacement battery.

Lifetime Replacement Plan: After the 6 Month warranty period, the Lifetime Replacement Plan takes effect. Under the Lifetime Replacement Plan, if a battery becomes faulty, the customer can receive a replacement for 20% off the current selling price of the battery w/ Free Shipping to the lower 48 states. Photo evidence of the faulty battery will be required. Applies to original battery owner and is not transferable.

Compatible With:

  • Virtually all 1/10 Scale Vehicles such as Traxxas Slash, Slash 4×4, Bandit, Rustler, Stampede, Stampede 4×4, etc. that accept 11.1V batteries. (Extended Battery Strap may be required.)
  • 1/8 Scale Vehicles that accept up to 6S LiPo batteries. Run 2 of these batteries in series to achieve 6S power!
  • Please check with your Speed Control’s manual to determine if it can accept 11.1V batteries.
  • Use the size specifications below to determine if this battery will fit your application.


Capacity: 6600mAh
Voltage: 3S / 3 Cell / 11.1v
Discharge Rate: 75C Constant (495A) / 150C Burst (10 sec) (990A)
Charge Rate: 2C (13.2A)
Watt Hours: 73.26Wh
Weight: 14.7oz / 419g (including wire, plug & case)
Dimensions LxWxH: 133.0 x 44.0 x 32.0 mm
Dimensions w/ Wiring: 138.0 x 44.0 x 32.0 mm
*Note that dimensions may vary by ± ~1mm.
Discharge Plug: Traxxas High Current Style Connector
Balance Plug


  • 11.1V 6600mAh 3S Cell 75C-150C LiPo Battery Pack w/ Traxxas High Current Style Connector
  • Vant Battery Warranty w/ Lifetime Replacement Plan

Equipment Needed:
LiPo Balance charger capable of charging 3 cell LiPo batteries, Or a LiPo charger with an External Balancer

Equipment Recommended:
LiPo Safe Charging Bag/Sack/Pouch, Cell Voltage Reader

Safety Notes & Warnings:
LiPo batteries are potentially hazardous. Improper usage can cause fire or explosion.
Charge and Store battery in LiPo-Safe Bag away from flammables on a concrete surface.
Charge using a LiPo compatible Balance Charger ONLY!
Never Charge above 4.2V per cell.
Never Discharge below 3.2V per cell.
Always use under adult supervision.
Store the battery in a place not accessible by children or infants.
Do not short the battery’s positive and negative terminals.
Stop use of the battery if it expands or the temperature reaches above 70° Celsius / 160° Fahrenheit.
The end-user is fully responsible for any results in using this battery pack.

Package Weight 1.00 lbs
Package Dimensions 7.3 × 2.5 × 2.2 in
Battery C-Rating

Battery Case

Battery Height

Battery Length


Battery mAh Rating

Battery Plug

Battery Voltage

15 reviews for 11.1V 6600mAh 3S Cell 75C-150C LiPo Battery Pack w/ Traxxas High Current Style Connector

  1. Michael Galli

    I really like the service here and the shipping is awesome thank you for doing a great job

  2. Brian S

    Very good batteries…..

  3. avinash inalsingh

    I am seeing one cell reading on both batteries reading 4.14,4.20, 4.20 on both batteries. I am going to cycle them a few times and see how it goes. I have friends who have these batteries and they ran super. They are worth the price. I will buy more for sure!

    Admin Reply:
    Hi. Please be sure to reach out to us if you are having trouble with the batteries after cycling them. We have a 6 month warranty against manufacturing defects such as weak cells.

  4. David Leveillee

    So far this battery has served me well. I would recommend it to anyone looking for a great battery at a great price!

  5. Ryan Prather

    Thank you! This is a great product with a great price. Awesome!

  6. jonathan swenson

    I love the way this battery increases the power of my vehicle. I will now have to buy weights for the front end to keep it down.

  7. justin murphy

    This battery is sick! It’s a must-have for your car.

  8. Ken Stephen

    This is an excellent battery. It gives a very long run time in my Axial Yeti XL.

  9. Russell Char

    This is a very good battery. It is excellent for drag racing and it is at a fair price.

  10. Earl Bishop

    I’ve had these batteries for a couple months now and they’re doing very well. I’m running them in an E-maxx that I had to make custom battery straps for them to fit into, but they have plenty of run time. I would definitely recommend Vant batteries to anyone.

  11. Kevin Craven

    This is awesome. I really like this battery. It was a fast shipment and reasonable prices.

  12. Thomas Davis

    Dirt Cheap RC has lightning fast shipping! The item is exactly as described. I am very pleased. This is an A+ store!

  13. Dustin J

    This came new as described. It makes my Rustler fly!

  14. Jack Orloff

    This was a great transaction and super fast shipping! A++++

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