Benjamin Mayo, 9to5Mac:

A number of users are now airing their frustrations about battery life issues. A slice of Magic Keyboard owners are noticing that their iPad’s battery drops quickly when using the keyboard with the backlight enabled, and some reports indicate battery drain problems arise even when the iPad is idle and not in use.

I’ve seen a good number of people complain about this on Twitter. Hopefully, this is fixable with a software/firmware patch.