I messed up my Kelly controller and want to get it repaired. I am testing what I can figure out how to test. I will part it out to make a version of the open source controller if it'll cost too much or be too difficult. It's no big deal to me that I broke it, I've had very little instruction on EV building, and the controller is the only big thing I've broken thus far, I got the experience at a price.
Cause of the problem: I shorted the battery cables while they were connected to the controller. The controller still worked for 6 months of intermittent use, but would send power to the motor after powering the controller on through the key switch, but without any throttle applied. It seemed to work fine other than that, then the controller stopped putting out as much power, without getting hot. Twisting the throttle did nothing, the controller just acted as if I was twisting the throttle a little bit, so that the motorcycle would slowly accelerate. Then it just died and would not power on.
I have taken it apart, and I'll put up pics if needed. Nothing appears damaged and I am still wrapping my head around the transistors (
FDB2532) so I can make sure I've tested them properly, but I gather from this forum that MOSFETS don't go without a show.
I only paid $500 plus S&H, so it may not be worth fixing, but I'd still like to know who to send it to if it works out. I do have a replacement installed, so I don't "need" the controller for the motorcycle, and that should answer any questions to the tune of "did you check the blinker fluid?", nothing else was causing the issue and the bike runs like it should now, on electrons.
Not so relevant, but maybe interesting info:
1985 Honda VFR750 (first converted 2010 with Optima, then out they came)
ADC K91-4003, 31 Thunder-Sky 40Ah (Mini BMS), Kelly KDZ12400 (new)
Aluminum sheet and ABS fairings, tank is now a "trunk"
Top Speed is 78mph, acceleration is acceptable for now.