12A BLHeli Electronic Speed Controller by EMAX

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EMAX
EMX-M-022
Low Price: $8.99
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This is an EMAX 12 Amp BLHeli ESC, intended for Airplanes, Helicopters, & Multirotors.  

Features:

  • BLHeli Firmware for ease of use, and crisp throttle response
  • Low voltage protection
  • Over temperature protection
  • Self-check functions
  • Separate power supply for MCU and BEC, enhancing the ESC's ability of eliminating magnetic interference
  • Parameters of the ESC can be adjusted via BL Heli Suite
  • Throttle calibration possible through Transmitter, BLHeli Suite, Baseflight, and Cleanflight
  • Equipped with built-in linear BEC
  • Max speed: 210,000 RPM for 2-pole, 70,000 RPM for 6-pole, 35,000 RPM for 12-pole

Specifications:
Input Voltage: 1-4 cell, 1s-4s LiPo
Constant Current: 12 Amps
Burst Current:
15 Amps
Dimensions (LxWxH): 26x20x7mm
Motor Wire Length:
47mm, 20awg
Battery Wire Length: 72mm, 20awg
Throttle Wire Length: 257mm
ESC BEC: Built-in Linear BEC
BEC Output: 1A/5V
Weight (including wires): 10g
Programmable: Yes

This product was added to our catalog on January 28, 2016

Corbin Kelley
Saturday, Jul 21 2018 (3 months ago)
EMAX 12A BLHeli Electronic Speed Controller
I HAVE ORDERED THREE OR FOUR OF THESE SO FAR. I HAVE ONLY HAD ONE GO BAD AFTER ABOUT 10 FLIGHTS.
Mark Bangert
Verified Owner
Tuesday, Jun 12 2018 (4 months ago)
EMAX 12A BLHeli Electronic Speed Controller
First off, let me start by saying that Amain hobbies is a great place to do business with.

As for the EMAX ESC, I was very disappointed. I purchased two of these devices. On the plus side, they were the perfect form factor for my project. The first ESC I installed seemed to work fine, it calibrated ok, it throttled up fine, but after about 30 seconds of runtime, it cut out and reset. I checked my setup, and tried again, same thing. Tried one more time and the controller burst into flames. Not expected behavior.

Ok, I can see that maybe it was just a defect controller, so I replaced it with the second one. Checked the connections, Calibrated it, throttled it up, and it seemed to work. Tried to go flying. Throttled it up, took off and the controller cut out again and reset. It did the same thing as the first, without the flames this time.

Just to make sure I wasn't doing something wrong, I swapped the controller with another manufacturer (US). The plane works fine and I'm still flying with the other(US) controller.

I really can't recommend this ESC based on my experiences. I bought it because it was inexpensive and it was recommended, I guess you get what you pay for. Sorry.

Regards,
Mark