48V 1500W Brushless Motor Speed Controller Replacement for E-Bike Electric Bicycle Scooter

Works well, nice power very easy to install, lots of features

I would buy again.i was 50/50 but after I read other reviwes. Made me feel better. Red wire with eye needs power or a power switch, key etc. After installing tested, went in opposite direction turned battery off hook the learning up battery on. Went the right way. Im not sure on any of the other functions. No need for my use.

No instructions or compatability information for older ebikes without built in lights HAD to return

It's a nice product has many applications but the one thing it does need is a wiring schematic without it it's hunting pack to make it work all it takes is one little wrong wire and you can short everything out so you really got to be careful

Update: Worked nice for a few days, then quit. Checked all the connections, didn't see anything loose. It appeared to be getting power. Battery was still at 50 volts. Opened up the controller box and didn't see anything fried or anything loose. Not sure what it is, so can't 100% blame this product, but I ordered something else.Just bench testing, I couldn't get it to work at first. I had to cut the 3-wire plug off my old throttle (red, green, black wires) which matched 3 wires on one of the controller plugs so I correctly assumed it was throttle. But the single red wire with the eye lit has to be connected to power too. That wire would go to an on/off switch if you have one. The wheel spun the wrong way so I connected the single white leaning wires together and it spun (without giving it throttle), I disconnected them and reconnected them and it spun the correct way. Disconnected them and leave them disconnected. Now the single red eye lit wire gives it power and the throttle makes the wheel spin in the right direction. Problem solved but a little frustrating.I looked at other amazon ads for similar controllers that had better wiring diagrams and color photos that showed the actual color of the wire unlike this listing. And I read comments and found some helpful wiring info too.

Fácil de conectar

Being new to the ebike world, and a bmw performance specialist, i had to get more power out of my new ebike. the little 250 watt controller powering a bafang 500 watt geared hubmotor just wasnt cutting it. so after trying about 3 different controllers, frying my display and all my hall sensors, i replaced the sensors, and the burnt up wiring both in the harness and coming out of the hub. I was thrilled to feel this controller unleash the beast i knew that 500 watt motor to be. the three speeds are great for letting my girl ride or for when i take my child for a spin on it. ive been using it daily going on months now and it hasnt let me down once. currently being used on a 48volt battery and when its fully charged it gets out of the hole for real and doesnt heat up my hub hardly at all

Why did you pick this product vs others?:Not well put together. Looks like an 8 year old assembled it. I opened it to put a conformal coating on the circuitboard and a smd resistor just fell off. Soldered it back but sheesh..