If you hold the Option key down before you click on the battery icon in the menu bar (Mac laptops only) 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.
That’s two.Read 'em all:
Mac Option Key tip #1: the WiFi Menu
Mac Option Key tip #2: the Battery Status Menu
Mac Option Key tip #3: Close All Finder Windows
Mac Option Key tip #4: Reveal a Contact's Groups
Mac Option Key tip #5: Rotate the Other Way
Mac Option Key tip #6: Option-Drag
Mac Option Key tip #7: Option-Click
Mac Option Key tip #8: Option-Empty Trash
Mac Option Key tip #9: Special Characters
Mac Option Key tip #10: One-click System Information
Mac Option Key tip #11: Delete a Messages conversation with one click
Mac Option Key tip #12: Open your Library folder
ONE MORE (on my One-Minute Macman site): How to temporarily turn off Notifications on a Mac quickly and easily