Four fire engines and around 25 firefighters tackled a house fire on Swansea Court in North Woolwich.
Half of the ground floor and parts of the first and second floors of a terraced town house were damaged by fire. Four people left the building before the Brigade arrived and there were no reports of any injuries.
The fire is believed to have been accidental and caused by the failure of a lithium battery in a hoverboard.
A London Fire Brigade spokesperson said: “Lithium batteries are susceptible to failure if incorrect chargers are used, so it’s important to always use the correct charger for the product and buy an official one from a reputable seller.
"You should unplug your charger when you have finished using it and we would advise not to leave it unattended or charging while people are asleep.
“Batteries can present a fire risk if they’re over-charged, short circuited, submerged in water or damaged, so it’s really important to protect them against being damaged too.
“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.”
The Brigade’s Control Officers took the first of six calls to the fire at 0741 and sent crews from East Ham, Plaistow and Barking fire stations to the scene. The fire was under control by 0841.