How to check and charge Magic Mouse?
How do you check and charge the Magic Mouse?
MacBook Pro 13″, macOS 10.13
Question marked as
See the information in Recharge the built-in battery in your Apple keyboard, mouse, or trackpad - Apple Support
It has information about checking the charge status and charging.
Also note that older models did not have rechargeable batteries. See the following from the same Apple Support article above:
If you have an earlier Apple wireless mouse, keyboard, or trackpad with removable batteries, learn how to install batteries.