this post was submitted on 25 Mar 2025
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Steam Deck

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Is there any way to remotely get a low battery notification for my Steam Deck? I don't use it every day, and batteries don't like to sit on a charger continuously, so it might sit idle for a couple days, (relatively) slowly losing charge.

I have the Steam App on my phone, and Valve has my email address. It would be great if the Steam Deck could send out an SOS before it dies.

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[–] frank@sopuli.xyz 1 points 1 month ago

batteries don't like to sit on a charge continuously

I absolutely agree for traditional lithium ion batteries, but for lithium polymer batteries, a middle SoC is best for longevity. As far as I understand, it's better to sit at ~100 SoC than to do full discharge cycles, again unlike older battery tech which absolutely wanted full discharge cycles.

If you wanna be gentle on batteries, it's more about not rapidly charging them rather than doing charge cycles these days. So if the gameplay loop of optimizing your battery SoC is fun: do that, if not: I wouldn't bother

https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries

[–] seang96@spgrn.com 1 points 1 month ago

The steam deck already does limit charging to 80% after being plugged in for an extended period of time so the battery cells will still have a charge but no be in the harmful range.

[–] rotopenguin@infosec.pub 1 points 1 month ago

I don't think that systemd has a whole lot of sleep-management architecture that does what you want? What it does have is the ability to do "suspend-then-hibernate", which would suspend for some set time, wake up, and flip over to hibernating. I've set that up on Debian (not too hard), Ubuntu (pure hell), haven't tried on SteamOS.

What you want is technically possible without changing the hardware or firmware, but I think it would take an unreasonable amount of systemd coding.

https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate#Changing_suspend_method