For full instructions to change the batteries in most wireless Apple peripherals please see http://support.apple.com/kb/ht3903

Apple Magic Mouse

Note: This mouse requires two (2) AA batteries.

To replace the batteries of an Apple wireless mouse:

  1. Turn over the mouse and turn it off.
  2. Remove the battery compartment cover and insert two AA batteries. Make sure the positive and negative ends are facing the correct direction, as shown below.



  3. Replace the battery compartment cover.

Apple Wireless Keyboard

Note: This keyboard requires two (2) AA batteries.

 

  1. Turn the keyboard off.
  2. Use a coin to remove the battery compartment cover.

  3. Slide two AA batteries into the battery compartment. Make sure the positive ends are pointing the correct direction.

     
  4. Replace the battery compartment cover.
  5. Turn on the keyboard.