AppleInsider reports that Underwriters Laboratories (UL) have tested 400 fake Apple chargers that have been obtained from sellers in Australia, China, and the US, and found that 99% of them are unsafe.
UL subjected the chargers to high voltage in order to find out if they were correctly insulated, as well as making other important safety checks.
After carrying out the tests, UL said that chargers made by unknown manufacturers and purchased online were an “unknown entity” and were therefore dangerous to use.
In October Apple stepped up its efforts to tackle the growing problem of counterfeit chargers by suing counterfeit accessories seller Mobile Star for violating copyrights and trademarks by selling fake goods on Amazon and Groupon. The lawsuit particularly refers to fake 5-watt USB power adapters and Lightning-to-USB cables that Mobile Star sold online.
Apple said that it has an ongoing program designed to combat the sale of fake accessories, and that in the past 9 months it purchased “well over 100 iPhone devices, Apple power products, and Lightning cables sold as genuine” from Amazon’s “Fulfillment by Amazon” program, finding that nearly 90% of them were fake.
Back in 2012 engineer Ken Shirriff found that Apple’s official chargers had better and safer components that those in the fake ones, and following that Apple launched its still-running fake charger buy-back program.
Source: UL safety testing shows 95 percent of counterfeit iPhone chargers lack safeguards, are unsafe