–Option Key tip #2: the Battery Status Menu —Read 'em all:
Option Key tip #1: the WiFi Menu
Option Key tip #2: the Battery Status Menu
Option Key tip #3: Close All Finder Windows
Option Key tip #4: Reveal a Contact's Groups
Option Key tip #5: Rotate the Other Way
Option Key tip #6: Option-Drag
Option Key tip #7: Option-Click
Option Key tip #8: Option-Empty Trash
Option Key tip #9: Special Characters
Option Key tip #10: One-click System Information
Option Key tip #11: Delete a Messages conversation with one click
Option Key tip #12: Open your Library folder
If you hold the Option key down before you click on the battery icon you will see “Condition: Normal” (I hope) or “Replace Now” or “Replace Soon.” And, if you actually do choose that “Condition: ” menu item you’ll get a Help screen that gives you some explanation. Pretty neat.
If your battery is in terrible shape it will say “Service Battery” whether you hold the Option key down or not. Like it does on my Mac. Waaaaaaah.
By the way, when an Apple laptop’s battery goes bad it tends to swell. When it swells, it pushes up on the bottom of the trackpad, sometimes causing clicks all by itself. See this article by me for more on that.
BONUS: that “Show Percentage” item in the Battery Status menu is nice to have checked, as long as you have room in your menu bar.