We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here. New Which? research has uncovered dozens of dangerous USB chargers, travel adapters and power banks listed for sale on AliExpress, Amazon Marketplace, eBay and Wish that could cause fires, give electrical shocks and potentially harm or even kill consumers. In a new investigation, more than three quarters of the 35 products from ‘unknown brands’ – those our experts didn’t recognise – that we purchased from online marketplaces, failed our electrical safety tests. If you have one in your home, it could prove to be deadly. We found: Our video illustrates just how difficult it can be to tell an unbranded or unknown brand charger from the official authorised product. We tested 11 USB chargers that appeared to be very similar to a genuine Apple charger and claimed to work with Apple devices. They were all either unbranded or came from unknown brands, and we bought them all from AliExpress, Amazon Marketplace, eBay and Wish. Eight of eleven lookalike brands failed sta...