A fire which forced three people to flee a house in Drakelow was caused by an e-bike battery, the fire service has said.
Two Derbyshire Fire and Rescue Service crews were called to the semi-detached property in Harbury Close at 01:47 GMT on Tuesday.
An adult and two children escaped through a first floor window after flames blocked the stairs.
A fire service spokesperson said smoke alarms had alerted the occupants and added that e-bikes and scooters should not be charged overnight.
Station manager Barclay Masterson said: “Without working smoke alarms, the outcome could have been very different, as this was a severe fire that put those within the property at significant risk.
“Lithium-ion batteries power our everyday lives, and it is devastating to see the extensive damage caused on this occasion by one used to power an e-bike.”
“The battery cells used in e-bikes and e-scooters can cause rapid fire development, while producing large volumes of toxic smoke and flammable gases.
“It is vital to follow the manufacturer’s instructions and store e-bikes and e-scooters appropriately within your property so that, in the event of a fire, the risk of harm to those inside is significantly reduced and their escape route is not blocked.”
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