My neighbor had a great running ebike that ran on 36V, the controller died, so we bought a controller from AliBaba that we were told would work without hall sensors, just hook up the batteries, display/controlelr, and throttle and it should run without any of the other wires connected. We got the parts, connected it up, the motor runs while the tire is in the air but quickly cuts out when it is on the ground. Also the throttle sticks at full when you release the throttle twist grip sometimes. And the display never shows 36V even though the system is a 36V/48V system. So I tried to return it, the Alibaba site says they respond to those requests in 2 days, well a week had gone by and no reply. So I'm wondering if maybe I'm missing something obvious or someone here has experience with this controller.
i posted a couple of videos of on YT.
https://www.youtube.com/watch?v=qcjbuXbMm28
https://www.youtube.com/watch?v=uWa77QzNDxI
Here are some pictures of the controller, and display
https://i.imgur.com/HRH9SvY.jpg
https://i.imgur.com/pZKtbFJ.jpg
https://i.imgur.com/kvUx77p.jpg
i posted a couple of videos of on YT.
https://www.youtube.com/watch?v=qcjbuXbMm28
https://www.youtube.com/watch?v=uWa77QzNDxI
Here are some pictures of the controller, and display
https://i.imgur.com/HRH9SvY.jpg
https://i.imgur.com/pZKtbFJ.jpg
https://i.imgur.com/kvUx77p.jpg