Australian warnings urge e-bike and e-scooter safety ahead of Christmas due to fire risks from modifications.

As Christmas nears, Australian authorities warn that modified or illegally operated e-bikes and e-scooters pose serious fire risks and may void home insurance. Sales have nearly tripled in five years, but many users alter devices with low-quality parts or second-hand batteries, increasing the chance of lithium-ion fires. Some modified units may be classified as motor vehicles, requiring registration and separate insurance. Fire agencies report hundreds of battery-related incidents, including fatalities, prompting bans on modified e-bikes on public transport and proposals for registration systems. Officials urge consumers to buy from reputable sources, use original chargers, avoid overnight charging, and confirm coverage with insurers.