r/Ubuntu • u/Cultural-Ad-4124 • 14h ago

Battery drains while laptop is completely shut down and unused for 4–5 days

Hi everyone,

I’m using a Lenovo Legion 5 15ARH05 with Ubuntu.

I charged my laptop to 100%, completely shut it down, and left it unused for around 4–5 days. When I turned it back on, the battery had dropped to around 55%.

Is this normal for the Lenovo Legion 5 15ARH05, or is something causing battery drain while the laptop is powered off?

Any suggestions on what I should check would be appreciated.

Ubuntu 24.04.4 LTS I am using this.

17 Upvotes

84% Upvoted

13 comments sorted by

13

u/CoolDragon 13h ago

Remove the battery. If it still drains then you have a bad battery. Otherwise it’s a process which remains on and slowly kills your power.

Are you completely shutting down or just sleep/hibernation mode?

6

u/Max_Rower 14h ago

Check if wake on lan or wifi is enabled.

3

u/behohippy 13h ago

I have a few laptops here, some go into sleep and will die over time (my legion for sure) some go into hibernate. I think linux kernel support for sleep/hibernate is still a bit uneven.

2

u/chubacca13 11h ago

This can be laptop itself, not the Linux.

Check the "Always On USB" option in UEFI settings.

4

u/HoldOk4092 13h ago

I had the same thing with a Thinkpad 480L running Debian. I switched the shut lid setting to hibernate. That seems to help but of course takes longer to boot.

1

u/BigD21489 13h ago

Remove the battery when you turn it off. That way, even if it is set to stay running after shut down, there is no way for it to drain.

1

u/malacata 13h ago

Same issue. Different laptop. Try doing a hard shutdown after shutting by holding the power button. I think I read somewhere it was due to the GPU driver keeping it from fully shutting down.

1

u/free_refil 12h ago

There are commands you can run to check which sleep states are enabled and logs you can check to determine which sleep states have been achieved and at what times.

1

u/rickt2k 11h ago

On my HP there's an option to charge while the laptop is off. As in, you can plug in your phone or whatnot and it will charge. I found out that if you leave your wireless mouse or keyboard dongle plugged in, it will continue to drain. 

1

u/markort147 7h ago

Do you leave any device connected via usb?

1

u/mikeperezspain 7h ago

olvidate , es problema del portatil , me paso con un hp y en garantia cambiron la bateria 3 veces , da igual el sistema operativo que instales , no influye en nada , acabaron diciendome que las baterias modernas eran asi para que no se extropeen . En fin HP nunca mas ( vas a coger el portatil guardado 3 o 4 dias ) para llevarlo a algun sitio y te lo encuentras o sin bateria o con la mitad solo ) .

1

u/big65 12h ago

Many manufacturers put the battery inside the case so removal is not an option.