My Bafang Ultra Motor stopped working. I had washed the bike same as many times before. Careful to keep water off the components best I could. Bike ran after wash but the next day it would not run. When I removed the plastic cover on the motor I saw that the battery connectors were disenagrading so l replaced them with 48 volt Anderson Connectors. Which I believe are the same as the originals? Still would not run.