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 extended run-time replacement battery that will fit many aircrafts such as the DJI Phantom and Blade Helis and Quadcopters.


  • True Capacity and C-Rating
  • Thick 13AWG Discharge Leads
  • EC3 Discharge Plug
  • 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.


Capacity: 3500mAh
Voltage: 3S / 3 Cell / 11.1v
Discharge Rate: 30C Constant (105A) / 60C Burst (10 sec) (210A)
Charge Rate: 2C (7.0A)
Watt Hours: 38.85Wh
Weight: 7.1 oz / 203g (including wire & plug)
Dimensions LxWxH: 102.5 x 34.5 x 29.0 mm
Dimensions w/ Wires folded at end of pack: 105.5 x 34.5 x 29.0 mm
*Note that dimensions may vary by ± ~1mm.
Discharge Plug: EC3 Connector
Balance Plug


  • 11.1V 3500mAh 3S Cell 30C-60C LiPo Battery Pack w/ EC3 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 0.50 lbs
Package Dimensions 5.5 × 1.75 × 1.75 in
Battery C-Rating

Battery Case

Battery Height

Battery Length

Battery mAh Rating

Battery Plug

Battery Voltage

3 reviews for 11.1V 3500mAh 3S Cell 30C-60C LiPo Battery Pack w/ EC3 (EC-3) Connector Plug (E-Flite Blade 350 QX2 QX3 AP 450)

  1. Ron

    thank you, the vant 3500’s are a full 10 minutes of flight with camera on my blade 350qx3…they are the best I’ve ever used

  2. Russ Shanks

    This is a great battery for Blade 350 QX3 and earlier models too. It fits perfectly and gives plenty of power with at least five minutes of run-time safely. My other LiPo lasted several months of continuous use. Even then, I used it in another plane that crashed and trashed the battery. It is a small form factor with good power.

  3. Michael Scott

    This 3500 MAH 30C battery is smaller yet has more capacity then the 3000 MAH 30C E-flite battery. It is very promising if performance holds up. So far, there have been no problems. Dirt Cheap RC’s service and delivery is very good. I will continue to buy from them.

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