Battery drain while suspended



Just for “our” statistics: Can you estimate how long your Librem can stay suspended until a fully loaded battery is empty? And which Librem do you have? And which OS are you using?


Short update:

After having changed the RAM bar from Crucial to Samsung one year ago on my Librem 13 v2 (see earlier post here) the battery could stay about four days in suspend mode until it was empty.

I have updated my firmware now to Version: 4.9-7 (built May 16 2019) and the battery supports five days in suspend mode now. I am using Ubuntu 18.04 with the latest HWE stack (kernel etc.) so it may also have improved due to better Ubuntu support.

I have not yet used any powertop settings to improve the battery lifetime…


I have a Librem 13 v3 with the Crucial 16gb RAM. I am running the latest PureOS. I can get 4 days of standby on it. This is after I’ve used it some, so not even at a full battery. I’ve noticed about 14-22~% battery drain per 24 hours.

That is fine for me.

Personally a better solution to swapping RAM and tweaking power settings (although important) would be to get hibernation working and not worry about how much power you are sucking on while in standby.

It is a pain to setup on the Librem because of Luks and there being no clear guide to setting it up, but that is the best solution, IMHO.


As stated above, my Laptop is a Dell XPS 13.