MBP Pro MAX Discharging When Shutdown and Plugged In?

[ChpStcks]

If I unplug the MBP and close the lid it will slowly discharge over time, I understand that. But noticed last weekend, when I shutdown the laptop via the apple logo in the top left, and unplug the laptop. When I opened it back up on Monday (the Start Up jingle played) I noticed that the battery had fell to 92%? should the battery be discharging even when shutdown? and if yes, seems like a lot to discharge just for a couple of days no?

Then this morning, I plugged the MBP into power again, opened the lid and Start Up Jingle plays (I had shut it down last night at 100% after being plugged in for the whole day, was traveling so). It starts up, shows 100%, shows that it's charged. Then I look up after about an hour and it says it's at 92%? and now charging... but when I open activity monitor it's been plugged in for the last hour and a half or so (which is around the same time I plugged and booted up.

I know the battery saver mode usually doesn't allow it to be charged past 80% but my devices usually never learn that because my use is so sporadic over a typical day.

Any idea if this is an issue or normal apple cycling itself?

I'm usually on battery only every other day or so? and usually drain it down to 30-40% before recharging

 

[ChpStcks]

anyone experience this? looks like it happened again

 

[Sanpete]

Which part happened again? The first part isn't rare, judging from reports here. This thing doesn't seem to fully shut down the way they used to.

The second part was the first I'd heard of it. Unless you were running it very, very hard, the charge shouldn't have dropped. If it does discharge on purpose, your MagSafe light will turn orange and you'll notice.

 

[ChpStcks]

Which part happened again? The first part isn't rare, judging from reports here. This thing doesn't seem to fully shut down the way they used to.

The second part was the first I'd heard of it. Unless you were running it very, very hard, the charge shouldn't have dropped. If it does discharge on purpose, your MagSafe light will turn orange and you'll notice.

The second part happened again, and it just happening again as a type this reply.

I am not using the magsafe cable and never have for this specific device. I've always used an anker 65w gan2 mini?

I am not sure if this is part of the Apple's Battery Health Saver thing where it discharges to 80%? is there any way to check this?

(as I'm typing this it's still discharging now to 96% even though I unplugged and plugged the cable)

Additionally, I haven't ran this laptop very hard for a few weeks now, currently have a VDI, Firefox, notes, finder and thinkorswim open

 

[Sanpete]

You may be getting too little power from your charger, which is on the small side, but you may have the more likely idea that it's the battery health thing. I've read here of people's batteries going down to around 85% and then back up to 100% even though they don't have the optional battery optimization feature enabled. The idea is that there's an automatic version that works no matter what, and the optional version that only works if you select it.

 

[ChpStcks]

You may be getting too little power from your charger, which is on the small side, but you may have the more likely idea that it's the battery health thing. I've read here of people's batteries going down to around 85% and then back up to 100% even though they don't have the optional battery optimization feature enabled. The idea is that there's an automatic version that works no matter what, and the optional version that only works if you select it.

I don't know it keeps going down even when I'm not actively using it.. and always goes down to 92% and then starts to recharge...

 

[Sanpete]

The battery management feature may be doing it, since it's so regular. It seems to use some other metric than %.