Hi: I'm a fairly new Yukon owner (and new to eBikes) and interested in hacking the controller if possible to deliver a bit more power. (I am an EE with some knowledge of electronics)
1) how did you know it was limiting to 15A? Is that just from looking at the power meter on the display
2) I'm concerned about the statement of 10A continuous. I find one can sustain over 600W for a while, when biking, so surely it must be able to sustain over 10A for quite a while. Maybe continuous means for 100s of hours?
3) did you ever find out how to increase the current beyond 15A?
4) I was told something about modifying the shunt resistor might do it, but I would need more info about this. I'm not going to do something like this until I understand the ramifications.
4) can you recommend good resources for hacking the controller, are there s/w means of doing this?
5) or is it best to just change the controller?
Thanks
Roger
Hi Roger, we have been talking on the Yukon Group (same guy).
1. Yes, full battery and go for a ride. You can set to 15 or 25 and get same results.
2. Continuous means forever or a lot of hours. Remember manufacture told me via email that it is 12A cont and 25A max (trust them or me is up to you but looking at the insides from pictures above it looks legit).
3. No on getting into software, still think making a cable and connecting to computer and using the free software would do the trick.
4. I say no to shunt stuff, this is software limit not the controller lacking.
4 (2). The links I gave you have the software link and than making the correct cable is the trick. This should be similar to the other Bafang motors and products Lishui supplies.
5. Pain to change controller because of the cables but yes, I would switch to a KT LCD3 display at same time to have complete controller of settings. My other two bikes have that display, one that I built my self.
Good luck and let us know if you decide to go first, surprised that M2S or Radrover folks have not done this already which has very similar if not exact parts. Actually several others use this same default bike from China.
Anyone with pinout of cable we need to talk to controller via PC and controller? THANKS.