Following recent flooding events, fire safety experts have issued warnings regarding the long-term risks associated with electric vehicles (EVs), hybrid cars, electric bicycles, and scooters. The primary concern involves saltwater, which can cause significant damage to the lithium-ion batteries powering these devices.

According to fire officials, the chemical reaction caused by saltwater intrusion does not necessarily result in an immediate fire. Instead, the damage can compromise the battery's integrity, creating a latent risk that may trigger a fire days or even weeks after the vehicle or device has been removed from the floodwaters. This delayed reaction presents a unique challenge for emergency responders and vehicle owners, as a device that appears functional or safe may still be at risk of igniting.

While the report from The Hill highlights the danger, it does not specify the exact chemical mechanism or provide data on the frequency of such incidents. The warning serves as a precautionary measure for those in flood-prone areas, advising that any battery-powered equipment submerged in saltwater should be treated as a potential fire hazard and inspected by professionals. There is no current disagreement among sources regarding the physical risk, as the information provided is based on warnings from fire safety authorities.