Please choose your desired connector from the drop down menu if needed.

This is the new 11.1V 9000mAh 60C-120C LiPo battery from Vant. It’s designed specifically for Traxxas vehicles with longer battery trays such as the X-Maxx, XO-1, Rally VXL, Slash 4×4, and Slash 2wd VXL.

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 2878 battery. It has the same Voltage and Same Size. But it offers 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

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. Misuse, abuse, or neglect by customer is not covered in this warranty. After the 6 Month warranty period, the Lifetime Replacement Plan takes effect. Under the Lifetime Replacement Plan, you can send in your battery to receive a replacement for 50% off the retail price of the battery.

Compatible With:

  • Traxxas X-Maxx, XO-1, Slash 4×4, Slash 2WD VXL, Rally VXL and other vehicles that have extended battery trays with a length of 155mm. Be sure that your Vehicle/ESC/Speed Controller accepts 11.1V batteries. (Extended Battery Strap may be required.)
  • 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: 9000mAh
Voltage: 3S / 3 Cell / 11.1v
Discharge Rate: 60C Constant (540A) / 120C Burst (10 sec) (1080A)
Suggested Charge Rate: 1C (9.0A)
Max Charge Rate: 2C (18.0A)
Watt Hours: 99.9Wh
Weight: 23.1oz / 657g (including wire, plug & case)
Dimensions LxWxH: 152.7 x 46.5 x 44.8 mm
Dimensions w/ Wiring: 155.7 x 46.5 x 44.8 mm
*Note that dimensions may vary by ± ~1mm.
Discharge Plug: Traxxas High Current Style Connector
Balance Plug


  • 11.1V 9000mAh 3S Cell 60C-120C 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 1.50 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

3 reviews for 11.1V 9000mAh 3S Cell 60C-120C LiPo Battery Pack w/ Traxxas High Current Style Connector (X-Maxx, Slash & 4×4, XO-1, Rally)


    👍🏼 working good thanks

  2. Pat

    Very happy with them, i bought two for my traxxas X Maxx, 25 charges so far, cells balance just fine.

  3. drtal0n

    Great battery for a great price

    I was a little skeptical before purchasing this battery, but I saw the 6 month warranty and the other decent reviews that I jumped and bought one. I am glad I did! I use this battery on my Traxxas Slash 4×4 and the runtime is fantastic! I have a battery charger that indicates how many mAh were put back into the battery during charging and this thing is bang on the money even after around 10 charges @ 9100 mAh’s. I charge at around 1/2 of C rating, no overheating issues and I think the cells like it. I have a cell balancer that shows me what the individual voltages in each cell is, and the balancer has not had to do its job once, this battery is very good if you have a good charger and follow good care and charge procedures. The only thing I wish different about this battery is a hard case. I am in the process of making my own protector for this thing.

    Because I like to bash around, small rocks and stones get stuck in between the battery and the battery tray and over time that small gap between the tray and battery is like a crushing zone, but the battery takes the brunt of the force and the small rocks end up poking small holes through the battery’s protective shrink tubing. This is in no way a fault of the battery, but my way of running my car. The best solution I have found is to place a small washcloth or rag at the bottom of the tray, place the battery in the rag and press into the tray. This takes up the small spaces and does not let stones or rocks between the battery and the tray and keeps it well protected.

    I will buy another one when this one is dead! Maybe by then they will be even cheaper!!

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