The Office for Product Safety and Standards (OPSS) is warning consumers to stop using dangerous models of UPP batteries in their e-bikes. These batteries have been linked to multiple serious fires.

OPSS previously issued a warning about these UPP batteries in January 2024 when it took action to require online marketplaces to stop selling them.

The specific models affected are UPP (Unit Pack Power) U004 and U004-1.

These models should not be used as they are dangerous and can cause a serious fire or explosion that spreads rapidly, and which can lead to serious injury or death.

Read the Product Safety Report on UPP batteries.

Owners of e-bikes are advised to take the following steps:

1. Check that your e-bike, particularly any second-hand model or e-bike conversion, does not contain UPP battery model U004 or U004-1.
2. If it does, stop using it immediately and do not charge the UPP battery.
3. Dispose of the UPP battery at any local household recycling centre that accepts this type of battery.
4. Contact the seller for redress.

Graham Russell, Chief Executive of OPSS said:

Unsafe e-bikes batteries are still in use around the country. When they are being charged, they can catch fire with horrific force, threatening the lives of those who use them, their families and their neighbours. While OPSS takes action to remove these wherever we can, it is vital that consumers are aware of the risks and that they check that their own e-bike, or any e-bike they see for sale online, does not contain these UPP batteries. If anyone finds one, don’t use it and contact the seller.

The Government advises that consumers should only buy safe e-bikes from reputable sellers, only replace parts with products recommended by the manufacturer and always seek professional help when converting or repairing an e-bike.

Further Government advice is available on the steps you can take to reduce the risk of e-bike fires, as well as a basic checklist for looking after your e-bike or e-scooter.

Find out more about Buy Safe, Be Safe: avoid e-bike and e-scooter fires.

Follow these five steps to protect yourself from e-bike fire risks

Follow these five steps to protect yourself from e-bike fire risks: Welsh