The hub motor is rated at 36v 250w, which I have previously tested on another scooter. When on the other scooter, I ran it on 36v.
Plans for this scooter are to run it on 48v, at 13a. This should make it 620w. The battery has a mount, which will be mounted on the handle bar stem. Initially I'll use a cheapo china controller that's rated at 350w but I know run 620w no problem.
If it all goes well, I've ordered a spot welder so will go the full send and make a 72v battery up. It might go boom, it might not, we will see.
The silver scoot was my test scoot, so check the motor and controller were all good.