IIRC you can do that already in Power Management Settings under "On
Low Battery".

On 26 February 2018 at 14:39, fred thompson <fredthompsonlml@gmail.com> wrote:
> on a laptop running macos, when the battery is low and when the laptop is
> about to power off, mac osx automatically suspends the ram on to the hard
> drive, and when the next time the device boots, it restores the last state
> it has saved.
>
> I would like this implemented in kde5, it would be as easy as adding a
> function from the suspend libraries to the battery dying event
>
> sorry if this msg is a little hard to understand, I'm on meds =(
>
> thank you
>
> FJT



-- 
Shantanu Tushar    (UTC +0530)
shantanu.io