QSMOTORSVMC72150 V1 Controller for 2000W-3000W Electric Bicycle and Scooter Motor Brushless DC Controller with Adapter

It was pretty easy to install, it's basically a Sabvoton controller. I used an MXUS-3000w hub motor on my eGo scooter. I had a trapezoidal controller on it but it made too much noise at low speed, the Sinewave controller made it nice and quiet. The PC program works but the UI (User Interface) is clunky, I would gladly rewrite it for them. I haven't tried out the Android app yet, looks better than the PC app (at least on paper). The PC did connect right up first try, I was using an older laptop with Win 7. The documentation was sufficient but could benefit from a systems diagram. The documentation also needs to be proofed by someone in the United States. I will update after I find tune the controller parameters. :>)Update 8-5-2019 - Controller is working great! I switched to the IOS app to update parameters and it is way better.

Controller worked great for the first month nearly everything is adjustable afterwards it died and will not out put to the bluetooth transmitter or pc cable.

Perfect

This is the only picture I have- a Sample as to the shape of the connections upon arrival. No biggie. I run a bicycle shop, have the tools and supplies plus the enthusiasm to correct the problem and enjoy myself while doing it.Put it all together and---- nothing. Several frustrating hours later I conclude the 5v rail was faulted. Throttle cannot function off of <2volts.Huge investment. Waited over a month for it. So disappointed and pissed.Definitely dissatisfied to the fullest.Hope this saves someone the trouble.

Junk. They do not honor their warranty ever since Sia bought the company