We turn our attention to the battery, which sits snug as a bug in its little plastic box, making it annoying to extract.

As it turns out, that's not the only thing holding it down—there's a mess of glue to contend with as well. Removing the battery is even less fun than we feared.

The Magic Mouse 2's battery shares a common feature with the Apple TV Remote—the Lightning connector is soldered to the battery cable. Boo.

This small accessory doesn't pack light—that 3.67 V, 7.28 Wh, 1986 mAh li-ion cell holds about 9% more juice than the one in the iPhone 6s!