Help with the shunt modification.

ebike11

1 MW
Joined
Nov 16, 2013
Messages
2,004
Location
far away
Hi guys
How do you guys determine how high "Amp" wise you can go when doing the shunt mod?
I have this controller for my MXUS V3 motor. It quite fast already but the max. is set at 50A.
https://www.aliexpress.com/item/72V-2000W-18-mosfet-motor-brushless-sinusoidal-wave-controller-for-electric-bike-hub-motor-controller-G/32607605837.html?spm=a2g0s.9042311.0.0.68qbju
Is there a maximum limit based on the stock Amp value? In my case, could I safely go up to 60A or 65A for example?

My second question is:
If there are 2 controllers,
Controller A is rated at 72V 1500w 15fet and 45A
Controller B is rated at 72-96V 3000w 24fet and 80A (but is almost double the cost from the same seller)
Couldn't I just shunt mod Controller A to increase the Amps to 60A or more?

Thanks!
 
Back
Top