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Warning issued over Tesla battery system ‘fire risk’ – is yours affected?

Warning issued over Tesla battery system ‘fire risk’ – is yours affected?
The Independent UK Tuesday 29 September 2026, 11:43 UTC By Summer Woolley 2 min read
Key Points

Warning issued over Tesla battery system ‘fire risk’ – is yours affected? The US carmaker has launched a replacement programme for affected Powerwall 2 battery systems - Bookmark - CommentsGo to comments Become an Independent member to bookmark this article Already a member? Log in The UK’s Office for Product Safety and Standards (OPSS) has issued a safety warning over a Tesla battery system which “presents a risk of fire”.

Warning issued over Tesla battery system ‘fire risk’ – is yours affected? The US carmaker has launched a replacement programme for affected Powerwall 2 battery systems - Bookmark - CommentsGo to comments Become an Independent member to bookmark this article Already a member? Log in The UK’s Office for Product Safety and Standards (OPSS) has issued a safety warning over a Tesla battery system which “presents a risk of fire”. Tesla, founded by Elon Musk, has launched a replacement programme for affected Powerwall 2 battery systems, which are mainly used in homes. Customers are asked to ensure their system remains online and check the Tesla app for a notification confirming whether their unit is affected, according to the OPSS “The product presents a risk of fire as certain battery cells within affected units may develop internal defects over time,” the regulator said. “An investigation identified that battery cells manufactured by a third party may contain excessive lithium plating, which can lead to cracking of the cell casing. “This may result in an internal short circuit and subsequent thermal runaway, increasing the risk of the battery overheating and catching fire.” Thermal runaway occurs when a battery generates more heat than it can safely release, causing its temperature to rise rapidly and uncontrollably. “The product does not meet the requirements of the Electrical Equipment (Safety) Regulations 2016,” it added. Tesla has remotely discharged most of the affected units, and any remaining ones are in the process of being discharged. Customers are advised to contact their original installer to schedule replacements or contact the Tesla support team if the original installer is unavailable. Affected units will be replaced free of charge. Powerwall batteries store energy generated by solar or from the grid, which can be used to power devices and appliances, even during outages, according to the Tesla website. Join our commenting forum Join thought-provoking conversations, follow other Independent readers and see their replies Comments
Tesla (ORG) US (LOCATION) Powerwall 2 (ORG) Independent (ORG) UK (LOCATION) Office for Product Safety and Standards (ORG) Elon Musk (PERSON) OPSS (ORG) the Electrical Equipment (Safety) Regulations (ORG)
Originally published by The Independent UK Read original →

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