2024 MacBook Air always shows 100% charged even unplugged?

[Expidia]

I like to occasionally run its battery down. I've left it unplugged for a week now. I'm also using it with a 32 inch external Samsung monitor.
Always says 100% charged. Even when I open the MacBook it, also says 100% charged. Rebooted and still the same thing. Should I try a hard reset?

 

[Bigwaff]

I'm also using it with a 32 inch external Samsung monitor.

Does your Samsung monitor provide power over USB-C?

 

[raythompsontn]

The monitor is providing power. Unplug the monitor for a couple of days.

 

[Expidia]

Does your Samsung monitor provide power over USB-C?

I'm guessing it does now that you have said that. It is also plugged into a hub and the hub is also plugged into a 5W adapter.

 

[Expidia]

The monitor is providing power. Unplug the monitor for a couple of days.

Thanks Ray, I responded above to Bigwaff as to that's where the power is coming from.

 

[ignatius345]

FWIW, if you are always using it connected to power, it will eventually dial its maximum charge level on its own. I have an older relative who uses her M2 Air this way and it is always at 80% with a message about how it's "rarely used on battery":

You can also do this yourself by going to System Settings > Battery and then clicking on the hidden setting in Battery Health.

 

[Expidia]

FWIW, if you are always using it connected to power, it will eventually dial its maximum charge level on its own. I have an older relative who uses her M2 Air this way and it is always at 80% with a message about how it's limited itself because it's rarely unplugged. You can also do this yourself by going to System Settings > Battery and then clicking on the hidden setting in Battery Health.

Thanks. I did replace the monitor with a BenQ 32 inch A32OU it does connect to my MacBook with an included USB2 to USB2 cable from a 90 watt port on the monitor’s backside. I don’t have to use the MacBooks power adapter. So the only way I can see to run the battery down is to periodically use the MacBook alone without the monitor (with no power adapter).
I’ll just use it alone on my kitchen island until the battery is flat.

 

[ignatius345]

Thanks. I did replace the monitor with a BenQ 32 inch A32OU it does connect to my MacBook with an included USB2 to USB2 cable from a 90 watt port on the monitor’s backside. I don’t have to use the MacBooks power adapter. So the only way I can see to run the battery down is to periodically use the MacBook alone without the monitor (with no power adapter).
I’ll just use it alone on my kitchen island until the battery is flat.

I believe the best practice is to not let it go all the way down to 0% because that's supposedly harder on the battery chemistry. I would stop at 10% if it was me.

 

[Fishrrman]

Agree with ignatius in reply 8.

I'd even say that 10% isn't necessary.

Let it run down to about 20-25%, then plug it back in.