Charging the keyboard is slow 12 hrs and not done yet

Ridley50 wrote:

Charging the keyboard is slow 12hrs later still only 75%.

Recharge the built-in battery in your Apple keyboard, mouse, or trackpad

Call Customer Support (800) MY–APPLE (800–692–7753)

or on line https://getsupport.apple.com/

or call AppleCare Support at 1-800-APLCARE (800-275-2273)

Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232