Four fire engines and around 25 firefighters tackled a house fire on Longcroft in Eltham.
Part of the ground floor of a two-storey end-of-terraced house was damaged by fire. One adult and six children left the property before firefighters arrived and there were no reports of any injuries.
The fire is being treated as accidental and is believed to have been caused by the catastrophic failure of a lithium battery in an electric bike.
A London Fire Brigade spokesperson said: "Lithium batteries are susceptible to failure and can present a serious fire risk if they’re over-charged, short circuited, submerged in water or damaged.
"Try to ensure they are not getting knocked around while in use or while being carried as this can increase the chance of damage to cells.
"It's safer to store the bike outside or in a shed. If this is not possible, make sure you are not storing the bike on an escape route such as a hallway or by a door."
E-bikes and e-scooters are powered by lithium batteries. These types of batteries store a significant amount of energy in a very small space and are much more powerful compared to other types of batteries. If that energy is released in an uncontrolled way, then a fire or explosion may result. If there is overheating, crushing, penetrating or overcharging, then a fault can occur within damaged battery cells which may cause the battery to catch fire and/or explode.
Many of the e-bike and e-scooter fires in London have involved second-hand vehicles or the bike has been modified using parts bought online. At this time, there is not the same level of regulation of products for e-bikes and e-scooters sold via online marketplaces or auction sites when compared to high street shops, so the Brigade cannot be confident that products meet the correct safety standard.
For more safety information, including about how to safely store and charge your e-bike, see our #ChargeSafe campaign advice on the Brigade's website.
The Brigade's Control Officers received six calls about the fire.
The Brigade was called at 1811 and the fire was extinguished by 1919. Crews from Eltham, Sidcup, Lee Green and Bromley fire stations attended the scene.
E-bike or e-scooter top safety tips