Firefighters are issuing a reminder about using e-bikes and e-scooters safely following a fire at a flat on Jasper Avenue in Hanwell.
Half of a first-floor flat in a residential block was damaged by fire. A small part of a second-floor flat was also damaged. There were no reports of any injuries.
The fire involved an e-bike and the battery is believed to have failed due to overcharging and the incorrect charger being used.
A London Fire Brigade spokesperson said: "If you own an e-bike or e-scooter, there are a number of things you can do to help keep yourself and those around you safe.
"It is vital that you do not store or charge the device on an escape route such as a hallway. We have seen incidents where people have had to jump from windows or be rescued by firefighters because their escape route has been blocked by fire or smoke. If it is not possible to keep the device outside or in a shed or garage, make sure it is in a room where you can shut the door and contain a fire.
"When charging your e-bike or e-scooter, make sure you are using the correct charger. Mismatching the charger increases the risk of fire. It's also important not to overcharge and to unplug the charger once it's completed charging. Never charge an e-bike or e-scooter unattended or whilst your sleeping.
"If you're converting your bike from a pushbike into an e-bike, make sure you get a professional or competent person to carry out the conversion.
"We encourage anyone who owns an e-bike or e-scooter, or is thinking about purchasing one, to take a look at all of our #ChargeSafe advice on our website to help keep themselves and those around them safer from these types of fires."
The Brigade received the first of 26 calls at 1809 and Control Officers mobilised six fire engines and around 40 firefighters from Ealing, Southall, Acton and Heston fire stations to the scene. The fire was brought under control by 1853.