High Performance Electric Brushless DC Motor Kit, 48V 2000W 4300RPM, with Controller and LCD Throttle - Perfect for Electric Scooters, Bicycles, and Motorcycles Review

I deducted one star mainly because they don't seem to provide any real documentation and people keep referring to their Revain list for training. I wasn't expecting much at this price but it works exactly as described. Wires have mating connectors except for powering motors or batteries. All connections have also been marked. Reverse seems to be 1/2 to 1/3 forward power on my build and I'm checking with the seller if that can be changed. I use it to drive a small internal propeller shaft on a…

This engine was purchased and tested under no load and it ran well, throttle changed as expected. After connecting to a load, the motor struggled and the throttle became binary. The only inputs were on and off. Also, I contacted the seller for information and he said they had a data sheet for the motor and they never sent it. Finally, I connected a power monitor to the battery to see how much current is being drawn at full throttle (it's on). The highest I saw on a hard start was 1000 watts…

I was fully tuned then rebuilt the motor to run clockwise I figured no big deal. I just swap the yellow and blue phases, like in my RC car motors, no dice. The motor does not turn. After several unsuccessful searches online for a solution and emailing a manufacturer in China, I came across a video from India that said (in Hindu language) to swap the green and yellow Hall sensor wires on the motor connector and to swap yellow and blue phase. awesome, works as it should but counter clockwise. So…

I was thrilled when I bought this for my electric scooter conversion. It arrived but I didn't inspect the details right away as I still had work to do. When my weekend came and I looked around, most of the parts were in a sorry state. I'm a senior engineer in the R&D department of a semiconductor company and I'm very good at electronics, quality and troubleshooting. The first thing I noticed were some deep ridges, cosmetic scratches and melted plastic on the ESC. Everything was very well…

I have only received the motor/controller and am currently installing this system but it is my own design so a full appraisal will take some time. For now I decided to check what I know. The motor and controller were packaged in protective foam packaging and in a suitable shipping carton. The motor has scratches/burrs as stated in the product description. They are cosmetic in nature and do not affect performance. If you are worried about this, the engine is well polished and a simple polish can