What does this mean?

cdsmsr wrote:

Bought an MBP 13" 2022 two-three months ago, and this used to be all green. Anybody had this? What did you do?

I tried calibrating the battery

but it still showed red in the settings. Second image is after rebooting the laptop. My battery

health is "Normal".

Maximum capacity is still at 100%,

For additional context, I charged my laptop with the lid closed three days ago and accidentally fell asleep. Got to discharge the thing the morning after. Laptop was asleep and didn't think much after and I wasn't able to use the laptop for a few days until yesterday, that's when I noticed the red bars in the Setting. Any insight on this? Thanks in advance!

Not necessary to "calibrate"...

The rule of thumb—if you are near the mains leave it plugged in, if you need the portability then run on the battery only—this is how you optimize your battery charging and extend the working life of your battery by reducing the cycle count.

Determine battery cycle count for Mac notebooks

Determine battery cycle count for Mac laptops - Apple Support

About BHM battery health management:

M1/M2 SoC

About battery health management in Mac notebooks - Apple Support

What does it say for battery health...?

>System Settings>Battery

Anything but "Normal" take it in...

If you think you have an issue take it in...

Get help with your Mac notebook battery

Learn how to optimize the life of the battery in your Mac notebook, fix battery issues, and get service.

If you see Service Recommended on your MacBook Air or MacBook Pro - Apple Support

Have you tried rebooting the laptop?

Try running the Apple Diagnostics to see if any hardware issues are detected.

FYI, the graph is meaningless without more context. You can have Apple or an Apple Authorized Service Provider examine the laptop.

cdsmsr wrote:

<snip>

I tried calibrating the battery but it still showed red in the settings. Second image is after rebooting the laptop. My battery health is "Normal". Maximum capacity is still at 100%, if that helps.

For additional context, I charged my laptop with the lid closed three days ago and accidentally fell asleep. Got to discharge the thing the morning after. Laptop was asleep and didn't think much after and I wasn't able to use the laptop for a few days until yesterday, that's when I noticed the red bars in the Setting. Any insight on this? Thanks in advance!

Stop trying to micro manage the battery. Leave the computer plugged in when necessary or convenient to do so. Leaving the computer plugged in will not damage the computer or the battery.