What maintenance is required?
Aside from keeping your battery charged, maintaining Electric Bike is the same as any bicycle.
After the bike's been ridden about 100 miles you'll need a basic tune-up. This is standard procedure for all new bikes as they're broken in. If you're riding in wet conditions, you’ll want to take extra care and make sure you keep your drivetrain clean and well-lubed.
The most important (and simple) thing you can do is check your tire pressure regularly, and keep them inflated as indicated on the tire.