What exactly is going on inside those little cubes we use to charge our iPhones — and why do they cost so much to replace? Ken Shirriff has taken one apart, and inside has discovered an incredibly densely packed and well designed set of electronics, one that goes above and beyond most other USB converters.It’s a vastly detailed writeup of what’s going on inside this thing, but it really hammers home just how much effort Apple puts into perfectly engineering everything. As Shirriff puts it:
When I opened the charger up, I expected to find a standard design, but I’ve compared the charger to the Samsung charger and several other high-quality industry designs, and Apple goes beyond these designs in several ways.
It’s especially interesting when compared to a cheap, knock-off version, so perhaps it’s worth the extra money to get the official iPhone charger.