Last night, I removed the shell of the scooter (Spring Breeze Water Cooling 150) and painted it. As a result, after the installation, there was no power to start. What's wrong? With snails

Maybe you have disconnected the ground wire of the battery. See if the ground wire (that is, the wire connecting the negative electrode of the battery) is connected through the shell you removed, but you painted it to cover up the non-conduction or disconnection, and you didn't pay attention. If you don't continue to look elsewhere, it won't be a big problem for you. Check the ground wire well, and it will definitely be solved.