https://jimmymacontwowheels.com/a-list-of-rare-e-bike-and-e-bike-battery-charging-fires/Another bunch of fires reported in the past few weeks as well.
It doesn't seem that any enforcement is possible...
E-BIKE FIRE TIPS YOU CAN USE TODAY
1. Never leave a battery charging unattended. Day or night.
2. Don’t leave batteries on a charger once they are charged.
3. Don’t charge batteries near combustible or explosive materials.
4. Don’t charge a battery in a confined space like a motorhome, RV, boat, automobile, van or shed.
5. Never charge a battery that has been dropped, damaged or dinged.
6. Never charge a battery in a hallway entry/exit.
7. Never modify a battery.
8. Use only batteries recommended and approved by your bike’s manufacturer. Same with the battery charger.
9. Charge batteries on wire shelving with rollers. This allows an overheating or flaming battery to be quickly rolled away from structures.
10. If your e-bike makes a weird noise, feels hot, emits smoke or seems to be straining, stop riding. Do not load it in a car or put in the garage. Call 911. Any of these warning signs could mean a fire is eminent.
11. Look for the UL 2849 certified sticker on your next e-bike purchase.