My keyboard battery is very low, via alert, yet it is plugged into my iMac.
iMac running Sonoma 14.6.1
I haven't received this alert before, and I've had the keyboard several years.
It has a cord from the keyboard that ends in USB which plugs into back of iMac.
There are no other cords, no way to open anything to get to a battery.
iMac 21.5″, macOS 14.6