Re: how to limit battery charge level and/or edit uefi settings

[Ryo ONODERA <ryo%tetera.org@localhost>]

Hi,

On October 17, 2025 9:33:47 JST, Henry <nbsd4ever%gmail.com@localhost> wrote:
>Hello NetBSD Users,
>
>My battery has been overcharging and has begun to bloat.  This is on
>an HP Pavilion laptop  15au123cl running NetBSD 10.1.
>
>Apparently there is a way to limit the battery charge level in
>something called "Adaptive Battery Optimizer" in the "UEFI Firmware
>Settings", but the only way I have found to access this is via
>Windows, which I cannot go back to since I wiped the disk to put on
>NetBSD.

I have used many laptops from HP.
And I have no experience to require Windows
to enter UEFI firmware/BIOS settings.

User guide of HP Pavilion - 15-au123cl
has common description as follows:

> Turn on or restart the computer, quickly press esc, and then press f10.

You can download the user guide from here:

https://support.hp.com/us-en/product/setup-user-guides/hp-pavilion-15-au100-notebook-pc/model/12780759

And if you want to run Windows without
wiping NetBSD, Windows To Go USB stick is
useful. You can easily use Windows To Go
USB stick with Rufus for Windows.

https://rufus.ie/en/

Sadly it requires a working Windows environment.

Thank you.

>I would be grateful if someone has pointers on how to limit the
>battery charge level on this laptop.
>
>As always, thank you all very much.
>
>Henry

-- 
Ryo ONODERA // ryo%tetera.org@localhost
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