Apple’s MagSafe Battery Pack can charge iPhones faster with a new firmware update

My favorite kind of software update is the kind that unlocks secret hardware features, and the Apple MagSafe Battery Pack is the latest surprise — you’ll be able to cordlessly charge an iPhone at a faster 7.5 watts instead of the original 5 watts, once you apply firmware update 2.7 (via 9to5Mac).

You can wait for an update over the air, or plug a Lightning to USB cable from the pack to a connected Mac or iPad to get the fix, and then you’re off to the races, as they say.

But if I’m being honest, I wouldn’t install the update quite yet — I might wait until we hear back from Apple (or reviewers) on whether it’ll affect how warm the battery gets.

You see, I bought a MagSafe Battery Pack myself last year for my iPhone mini, but I returned...