question about Xen and thinkpad battery

[dark wizard]

Hello, Qubes Community

How does Xen manage laptop battery. Can in kill it quickly?

Is it compatible with laptop power management technologies and drastically affect battery life?

[Mike Keehan]

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I've been using Qubes on my laptop for more than three years, and my
battery is fine. Running on battery lasts six hours or more, which
is somewhat less than a normal Linux distribution, about 30% less I
think.

As there are more than 6 VMs running all at the same time, I think
battery power lasts very well under Qubes.

Mike.

[Franz]

On Sat, May 23, 2020 at 5:49 PM Mike Keehan <mi...@keehan.net> wrote:

On 5/23/20 8:20 PM, dark wizard wrote:
> Hello, Qubes Community
> How does Xen manage laptop battery. Can in kill it quickly?
> Is it compatible with laptop power management technologies and
> drastically affect battery life?

Thinkpads have some battery managment utility that work under linux and avoid charging battery at 100% and keeping it charged when power supply is normally connected. Charging and descharging decreases battery life, but also keeping the battery always at 100% decreases battery life.

These utilities work perfectly under arch-linux with a x230, but installing them in Qubes is very complicated. There are some suggestions on this mailing list, but it is too much difficult for me.