In our last article, we revisited state law aimed at preventing and mitigating fires involving lithium-ion batteries powering electronic bikes, scooters, hoverboards, and skateboards.
It’s worth noting that after hundreds of lithium battery-sparked fires, San Francisco has its own set of regulations in response to unique hazards caused by these batteries because of their chemical composition and the challenges associated with extinguishing such fires.
This is a timely topic after we recently witnessed firefighters rushing into an apartment building near our office to put out a blaze caused by an e-scooter charged overnight.
Let’s review some key requirements of fire code regulations implemented to enhance the safety of charging lithium-ion batteries.
Safety Certification: All micromobility must be safety-certified, complying with standards such as Underwriters Laboratories (UL) standards UL 2849 or UL 2272, European (EN) standards EN 15194 or EN 17128, or other safety standards approved by the San Francisco Fire Department.
Storage and Charging Limits: Individuals are permitted to store and charge up to four safety-certified devices within a single dwelling unit. Storing or charging more than five devices requires additional fire safety measures, including the installation of sprinklers, a smoke detection system, and maintaining a three-foot spacing between devices during charging.
Proper Charging Practices: All devices, removable batteries, and their chargers must be plugged directly into a wall outlet; the use of extension cords and power strips is prohibited. Charging should adhere to the manufacturer's guidelines, utilizing the original chargers and batteries.
Battery Inspection and Prohibition of Damaged Batteries: Batteries that have been dropped, cracked, or involved in an accident must be inspected for damage. Damaged batteries are not permitted for use in PMDs. Additionally, the use of reassembled or reconditioned lithium-ion batteries is prohibited.
Proper Disposal: Disposing of lithium-ion batteries in landfills, recycling, or compost bins is forbidden. All lithium-ion batteries must be recycled through San Francisco's designated battery recycling programs.
From the San Francisco Bicycle Coalition: New bike laws you should know »
Recology’s instructions on disposing of hazardous waste like lithium batteries »