Comparing $19 Apple iPad 10W USB Power Adapters and clones sold on eBay and elsewhere for $3, Ken Shirriff elucidates the risks unknowingly assumed by buyers of knockoff accessories. Cosmetically all but identical from the outside, the iPad chargers actually differ dramatically inside, with the Apple version providing a more stable flow of 2-Amp power with overheating and electrocution protection. By contrast, the clone produces only around 1-Amp power despite branding to the contrary, and cuts corners on everything from stability of the current to protection against temperature, moisture, and other electrical failures. Beyond supplying an inadequate flow of power to quickly recharge an iPad, Shirriff notes that the counterfeit charger’s board “is unsafe. If you use the charger in a humid bathroom and a drop of water condenses across the 0.6 mm gap, then zap!”
Counterfeit and other low-quality power adapters have been blamed for a number of iPhone-related electrocutions and deaths, most notably but not exclusively in China. In response to concerns, Apple offered to replace knockoff chargers last year for the equivalent of $10 U.S. in local currency. Similar concerns over sparking and exploding iPad chargers have been raised, as well.