What is Maximum Lifespan mode?

Just noticed this message on the battery indicator. Does this set a certain charging threshold? What exactly is this mode? You'll also notice that the battery is under this mode when there's a green ring around the battery icon as shown below.



It's also set to automatically optimize for battery lifespan.

 

How and when you charge the battery can change how long the battery is able to retain its full charge. Some batteries, after a year of use, might only be up to 90% of their original capacity. (So when your laptop was new, the battery lasted five hours. Now, it's only four and a half, for example.)

One way to keep your battery performing constantly at its best is to micromanage the battery charging options. When you're plugged in, it should run off the AC plug, and not the battery.

The battery lifespan setting will try to keep your battery in top shape. It probably won't start charging your battery unless you're below a certain percentage (as shown, perhaps at 96%) and will stop charging your battery too.

I see people custom set it to things like start charging at 90%, stop at 99. That means it won't always be charging, but won't spend forever trying to put that last little bit of juice into it.

What numbers you use can really depend upon your own use and your own battery.

As far as you're concerned, keeping it as it is will ensure your battery will be as useful for you as long as it can be. I'd keep it as is.