Apple’s [1] cancellation of its AirPower wireless charging mat was one of the company’s few big public flubs, but the concept behind the cancelled product remains attractive: A wireless charging pad that supports multiple devices, and that isn’t picky about how you set down your device in order to make a connection. Wireless charging accessory maker Zens has actually created such a device with the Liberty Wireless Charger[2], and while it doesn’t offer everything that AirPower claimed to be able to do, it’s a big step up from current wireless chargers and a a great companion for iPhone, AirPods and Apple Watch.
Coils, coils coils
The Zens Liberty is special because of how it uses the wireless charging coils that are responsible for the charging ability of any wireless chargers – wound circular loops of copper cable that provide the induction power received by devices like the latest iPhones and AirPods charging case. Zens has stacked 16 such coils in an overlapping array – which, conveniently, you can see in pretty much full detail in the transparent glass edition charger that’s available today alongside the fabric-covered version.
These overlapping coils are the key to the unique abilities of the Zens Liberty: Specifically, their arrangement means you can place your devices down in basically any orientation and they’ll begin charging right away. Most charging pads, by comparison, have one, two or sometimes three coils placed in specific locations, meaning you have to make sure your device is properly situated above one to actually get it to start charging. If you’ve been using wireless chargers for any length of time, you’ve probably had the unfortunate opportunity to get this orientation match-up wrong, resulting in a phone that didn’t charge at all when...