My wife's HP laptop does this as well (she is running Windows). A previous laptop did this and a BIOS update fixed it. For most laptops the official response from manufacturers seems to be: eat shit.
this post was submitted on 30 Sep 2024
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My son's Windows laptop did the same. Turns out there is a setting to make Windows truly shut down when selecting "shut down" from the menu, because normally it secretly sleeps or hibernates or something to have faster start-up times. There's also the power another device via USB option that you may have to disable in BIOS / EFI settings.
As usual :|
Laptops now use the internal main battery as a replacement of the cmos rs2032 battery (in a lot of em at least).
Not that such a low draw cause this level of drain. Maybe the battery is going out as well.
The CMOS battery has maybe 100mA and lasts 5 years. A laptop battery has at least 400x the capacity, it would not drain in a few days.
I checked and yes, there's no cmos battery in it. Do you think this may have something to do with it?
Hard to say. But it's something to consider. Lots of other worthwhile suggestions I see too. Hopefully it's not a combination of things.
Let us know how it goes!
How long does the battery last while powered on?
As it should be, the battery life while in use it's even better than my own pc
Might be related to those sleep state stuff that microsoft keep pushing. I think LTT has a video about how it causes battery to drain while off. I think the solution was either shutting it down while unplugged, or while plugged in or something. If you always shut the laptop down with the charger plugged in try to unplug the charger before shutting it down and see if it makes a difference. Or the opposite. I don't remember which it was.
Maybe Intel AMT running? I'm not sure it can be disabled though.
Even if it was it shouldn't drain the battery that fast.
Same with my Lenovo, not in few days tho but maybe in week or a two.
I've had a similar issue with most of the laptops I have owned. The battery just discharges slowly when the device is turned off.
I have no idea what causes it or if it can be fixed.
Instead of having an efficient chip monitoring the power button, they integrate that job into some 10nm chip. That chip doesn't get to power off, so it just pisses away power on gate leakage all day long.
I would check the journalctl logs to ensure it is fully turning off. If here is still battery drain and you are sure the laptop is off, then its a hardware issue rather than software.
how do I check this? This is probably the source of the issue (see this comment), but I have no idea on what to do to understand the actual cause
thanks for your time and help!
This is a good place to start to understand what you are doing: https://www.howtogeek.com/499623/how-to-use-journalctl-to-read-linux-system-logs/
But basically you shut the computer off, then on then do
journalctl -S -3m
Will show the last 3 mins of logs which you can go through and try to read the logs up until the moment it actually turns off to see what is happening.
Same for me with a MSI laptop, no solution
I have HP Notebook. This issue also happened to me. It was a battery issue. I just changed the battery.
The battery health is marked as 100%, which seems strange to me. However, the battery life while powered on is very good, so I don't think the battery is old or exhausted. Do you think that changing the battery may be the solution?
Maybe the solution. Not Sure.
It may be exactly this, noticed by Linus Tech Tips: https://www.youtube.com/watch?v=OHKKcd3sx2c
If their solutions don't work, try this: https://www.youtube.com/watch?v=7JoFi5yXzZk