Landlords and property managers are increasingly banning indoor charging of e-bikes and e-scooters because lithium-ion battery fires can grow explosively fast and overwhelm a hallway or storage room in seconds. This CGAP Safety DANGER sign clearly states “E-BIKE / E-SCOOTER BATTERY CHARGING PROHIBITED – LITHIUM-ION FIRE AND EXPLOSION HAZARD – DO NOT STORE OR CHARGE INSIDE THIS BUILDING” so there is no confusion about the rule or why it exists. The sign is printed on rugged 8x12 inch .040 aluminum with UV-resistant inks, so it will not curl, peel, or fade like cheap plastic or laminated paper. It mounts quickly to doors, walls, or chain-link fencing using the four pre-drilled corner holes and standard hardware. Use it in apartment bike rooms, common areas, garages, stairwells, college dorms, or commercial parking structures to communicate policy and reduce your liability. If you are the “little guy” trying to enforce big-city fire guidance on e-bike charging, this professional-grade safety sign gives you the visual backup you need.