Laws & Safety6 min
Electric Unicycle Battery Safety: UL 2272, Charging and Storage
UL 2272 certifies a wheel's electrical system against fire and shock, not how it rides. How to check it, and the charging rules the FDNY and makers agree on.
Topic
5 guides.
UL 2272 certifies a wheel's electrical system against fire and shock, not how it rides. How to check it, and the charging rules the FDNY and makers agree on.
Tiltback is a warning; a cutout is the wheel running out of headroom. What each alarm means, from the makers' own manuals, and how to keep a margin.
Pre-ride checks, weekly tire pressure, monthly charging in storage and no pressure washing. A maintenance schedule built from InMotion and King Song.
Expect 20 to 40% less range, never charge a cold battery, and store the wheel at the charge level your manual gives. Figures from InMotion and King Song.
A used wheel comes with no warranty. Here is what to check, what to ask the seller, and when to walk away.