Dead 48v 2000W scooter

[Namelessoggy]

Hi all, First time posting…
I’ve purchased a Vevor 2000W brushless motor with compatible 48V controller as minor upgrade/replacement for my modified 2019 Bullet…I also have Brand new lcd screen twist throttle, spare led twist throttle and old thumb throttle…previous set up ran dual throttles, led and thumb throttles using 48V controller with 1600W motor…this setup ran fine and I upgraded to lcd twist throttle and had to remove the thumb throttle as it wasn’t compatible…while riding along the throttle jammed on full and threw me off…scooter has not run since…
Installed the new Vevor motor and controller, wired up the key lock and led screen throttle and connected battery…the screen lit up, all good but nothing when accelerating…I’ve tried with watch different throttle considering compatibility issues, lights work on ignition yet nothing happening…I’ve got correct voltages across the charger port when connected to batteries thru the controller…I’ve not connected the brakes and brake light circuits, tried looping them out etc, the motor and hall wires are connected correctly as is the basics needed…throttle, key lock, motor hall and 3 phases for motor and still the wheel just won’t turn…I am absolutely baffled, have been riding/fixing/modifying these scooters for 10 years and never had this situation…is there some sort of sequence or order in which each thing needs to be connected…? The led throttle has different programming options but left in default mode since purchasing…I’ve replaced the throttle, controller and now motor and controller combination…it’s had 2 full sets of road race tires waiting to be used aswell as brand new 12” mags…I’ve also made the upgrade to hydraulic brakes, extended the rear frame for other gearing options, welded and reinforced the whole scooter at weak points…on a full charge I can reach 58km/hr with current set up,(when running)…
Please…does anyone know what I’m missing or doing wrong…?
Thank you,
Oggu

 

[neptronix]

Sounds like typical issues with low end chinese brands, in addition it seems like you have a severe safety issue as well.
Does the company offer any kind of support?

Most people here don't use these hyper cheap, non documented controllers, so any answers from us are just guesses.

I would suggest you buy a higher quality controller that has some support, and start fresh with a matching throttle and accessories. In order to select a good controller for your motor, you'd have to let us know which one it is ( Vevor might sell multiple motors rated 2000w )

 

[glennb]

Hey Oggy, I only skimmed your post, sorry.

You might want to provide links to the motor and controller.

Is it a united MY1020 form factor? There’s many variants, but they’re easy for controllers to run, very few poles, so low eRPM.

 

[slaphappygamer]

So you had 2 throttles wired at the same time with one controller? How does that work?

 

[Namelessoggy]

So you had 2 throttles wired at the same time with one controller? How does that work?

Wired in parallel

 

[Gruesome]

Just trying to help you clarify the timeline, and what worked and what didn't:
- 1600W motor + 48V controller A + LED twist throttle + thumb throttle: worked, with two throttles connected at the same time
- 1600W motor + 48 V controller A + new LCD throttle (+ old LED throttle?) : did work until the throttle (which one?) got stuck and the scooter ran away from you; has never run again since.
- 2000W motor + new 48V controller B + new LCD throttle: motor does not run (you wrote LED, but also 'screen', so I assume you mean the new LCD throttle.
- Then you write 'tried with watch different throttle': what does that mean?
- You also write you checked voltages, and that the motor and Hall sensor wires are connected correctly: how do you know that if the motor does not run?

- Then you again write something about the new LED throttle; is that merely a typo, or did you buy and try a fourth throttle?

I would start with doing some basic checks on the motor, since it never ran: do the motor resistances measure correctly? Does it run with the old controller? Does the old 1600W motor run with the new controller?