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. The increased C-Rating will help eliminate voltage drop towards the end of the run, allowing the battery to perform longer, offering you more run-time!


  • True Capacity and C-Rating
  • Thick 10AWG Discharge Leads
  • Durable Hard Case
  • 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, E-Maxx, 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 dimensions for proper fitment!
  • 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: 6500mAh
Voltage: 3S / 3 Cell / 11.1v
Discharge Rate: 75C Constant (487.5A) / 150C Burst (10 sec) (975A)
Charge Rate: 2C (13.0A)
Watt Hours: 72.15Wh
Weight: 15.5 oz / 442g (including wire, plug & case)
Dimensions: 138.5 x 46.5 x 36.5 mm
Discharge Plug: Traxxas High Current Style Connector
Balance Plug


  • 11.1V 6500mAh 3S Cell 75C-150C HardCase 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

13 reviews for 11.1V 6500mAh 3S Cell 75C-150C HardCase LiPo Battery Pack w/ Traxxas High Current Style Connector

  1. Troy M

    I absolutely love this battery. I’ve been searching for a cheaper more powerful battery and I’ve found said battery. The hardcase cover and the fact that it’s about $50-60 cheaper than the traxxas equivalent. Definitely recommended

  2. Layne Campbell

    These batteries work awesome in my Traxxas Spartan. It runs like a bat out of hell, and these batteries are the first batteries that did not blow up like a balloon. These batteries run cool in the Spartan where all others manufacturers I tried were 150 degrees, which is scary. I now have 2 sets since I really like them. I hope they last a long time.

  3. Curtis Canton

    This is an excellent quality battery. The C-rating seems to be on the money.

  4. Christopher Rouffa

    I decided to switch my Tekno SCT410 to a 3s only set up. For indoor SC racing, only hard packs are allowed on the track. Soft cases are just too vulnerable to punctures and explosive failure post puncture. I wasn’t sure if the 6.5A packs would be enough. Happily they are enough and then some! I returned and ordered a third one last night. They have good duration, balance perfectly (honestly not much balance needed when new), and great output. I would recommend these to any 6s users as a great alternative to packs they may be looking at. I will return and buy more in the future.

  5. Boyd Foulk

    I purchased this battery to run in my 1/8 E-Buggy super lite on the big tracks. I was really surprised by the run times and the quality of the battery for the price. This is right up there with the other batteries I run in my 4×4 short course which are labeled “Race Spec”.

  6. Nathan Hall

    These are great batteries. I have several. They are very powerful. They are definitely worth spending a little bit extra to get the hard case.

  7. Robert Ward

    These batteries are totally awesome and have long lasting power.

  8. mitchael pantry

    This is the best LiPo I have ever used. I loved my xo1. The burst of power was ridiculous. I’m getting 2 more in 6s for my Baja conversion.

  9. joseph tracy

    This is a great battery. It holds a good long healthy charge every time. Also it has a great equal discharge rate between cells. It is such a great battery for the price. I am definitely buying more!

  10. Erich Bobby

    This is a great Lipo battery for the money! I added this LiPo to my New Short Course truck. It has plenty of power for jumping and racing. Its fantastic!

  11. Bruce Gaston

    Wow what a great battery. It shipped quickly. The price is so reasonable I can’t believe the performance really.

  12. Jon Dziewit

    I was looking for a high quality, reliable hard case Lipo Pack for the right price! I purchased these Vant packs and decided to give them a shot. Right away I noticed the solid construction and heavy gauge connection leads. The pack took a nice healthy charge. Then I loaded it into my truggy and WOW! They are EXPLOSIVE! My results are great power delivery and run time. It felt endless! So, after many runs these packs seemed to be unfazed and in great working condition! I’m very pleased with these packs and since I have purchased many more packs in different configurations. I would completely recommend these packs to anyone looking for a quality LiPo at an affordable price!

  13. Kirk Hildebrand

    I’m happy to be the first review for this battery! What can I say about Vant? They are just as good as Max Amps. Thats what I say about Vant. I have four 2 cells, two 3 cells and one 4 cell. If I didn’t like them, I would not have bought more than one. These are great batteries at half the price of big brand batteries!

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