Change LVC to 40 volt on Xiongda 36 volt speedcontroller

[Bram1982]

Hi all,

Look at the picture near the lower left above the 63.com marking. What resister do i need to solder there to change the LVC on this speedcontroller to 40 volt?

I'm running 12 cell LiPo on this speedcontroller, but the LVC is currently set for 10 cell LiPo.

 

[wesnewell]

I don't see what you're talking about in the photo, but normally, to raise LVC, you have to decrease the resistance, As an example, to change my lvc from 62V to 88V I had to change the resistance from 1200 ohms to about 780 ohms. Ref:
https://endless-sphere.com/forums/viewtopic.php?f=2&t=29469
See LVC mod in first post. BTW, I used a var so I could change it whenever I wanted.

 

[Bram1982]

Oh.. on your screen resolution the picture might be cropped See the letters on the bottom where it says "chn_1@63.com"? Now look just above 63.com and you will see a missing resistor spot.
I took this pic from another thread and I think this is the spot where the LVC is set for this speed controller..

Good idea about the variable resistor, will check the other thread.

 

[wesnewell]

Yep. I see it now. A variable resistor that you could set to whatever would certainly work. One that would go up to at least 3K. Then you could change it for whatever lvc voltage you want. Just guessing, I'd say you need at least 2K there. If you knew what the original value was it would help make a better guess.