Increase DC Motor Controller Voltage+Amps


Joined Mar 10, 2019
Probably not easy to upgrade it. The MOSFETs that are on that board probably have a maximum voltage rating, likely something like 40V (for a 30V maximum rating). You would probably have to replace all the MOSFET chips. If you can do that, then you have to check the gate voltages. Your current board may be driving the gate between 10V-20V. Increasing the overall voltage may also increase the gate voltages. That means you may have to change gate resistors as well.

Thread Starter


Joined Mar 11, 2011
It has a very soft start. Do you think if there's any way to eliminate that? It has a 555 timer on it.
Hi dingo,
Unfortunately, you can't modify it so easily. The parameters of the controller depend on the parameters of power switches (MOSFET). To increase voltage you have to replace all MOSFET switches and also over-voltage protection circuits if there are any on the board. To increase amperage you will also need to replace the transistors and, in some cases, install additional radiators.

You can read more on the issue here:


Joined Nov 6, 2012
High-Power costs High-Money.

There are plenty of serious 12S ESCs that run "BL-Heli" Software which
lets You change an absolutely crazy amount of
parameters with a nice USB-Windows-Interface.

It sounds like you want to find out just how much
smoke You can make in less than 60-Seconds.

Reliable 12S Motors are never cheap,
why would You want to risk smoking them ?

Stick by all the manufacturers recommendations, or pay the price.