Given that the Magic Keyboard can be used while plugged in, and the Magic Mouse (clearly) can&#x27;t, this should be read as a design decision, rather than simply lazy placement.<p>My guess is that in testing, they found quite a few users were keeping their KB&#x2F;Mouse plugged in and charging all the time.
The Keyboard remains relatively stationary, whereas the mouse moves around quite a bit..
Given how frayed iPhone Lightning cables become when you move them, Apple probably (rightfully) worried that using the mouse while plugged-in would lead to damaged cables and a bad experience.<p>Moving the charging to the bottom stops this behavior.
People will charge their mouse, then use it wirelessly..<p>While I think a better solution may have been to re-engineer the lightning cables to be more resilient, this doesn&#x27;t seem insane.
They&#x27;re trying to use design to encourage certain user behavior, while discouraging others that don&#x27;t work well.