Change ESC cutoff rate

Hi everyone, I ma making a rc airplane, with has 2 ESCs. I want to change the cutoff rate to 3.4v per cell, so that the electrodes do not degrade. 30A BLDC ESC - Brushless Motor Speed Controller buy online at Low Price in India -
The default is 2.9

Your idea, to raise the cut off level is really good. However You need to get hold of the technical data sheets. Nobody can guess what's hidden in that yellow shrink sock.

Its actually written in the website from where i bought it

Specifications and Features:-


  • WEIGHT: 23g

  • DIMENSIONS: 45 x 24 x 9 mm(LxWxH)

  • Color: Yellow/Red(Depends on Availability)

  • CURRENT (A): 30A

  • BEC: 3A

  • Li-Poly: 2-3

  • Ni-Mh/Ni-CD: 4-10 Ni-Mh

  • CONSTANT CURRENT: 30A Max 40A<10s

  • Li-Poly 2-3 CELLS; Ni-MH 4-10 CELLS Auto Detect

  • Break On/Off

  • Auto Low BATTERY Slow down at 3.0V/cell Lipo, cut-off at 2.9V/cell lipo

  • APPLICATION: Multirotors, Rc Airplanes, etc.

Schematics would be needed to make the change You want. Users data don't tell anything useful.


That ESC is not programmable. So you can't change the Low Voltage Cutoff without reprogramming or replacing its internal microcontroller. And from the level of questions you're asking that's not something you will be able to do.


Sure thanks @slipstick and @Railroader

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.