Hi,
I am still getting used to the new librem 15v4. I have it less than a week.
What I noticed is that the battery when fully loaded does not go in 6-9 hours range.
When fully loaded the estimated time is around 5 h.
I also experienced that suddenly my librem 15 died when the battery was low.
Are those battery expectations showed on page realistic?
Or the page needs a little update?
Do you know how vendors measure battery life? 
Screen set to minimum brightness, no keyboard backlight, no disk I/O operations, and largely
a terminal screen open.
That way you will get the advertised hours and it won’t technically be a lie.
Apple, Lenovo and everyone does the same, it’s just marketing 101.
The real usage time of any 15’ laptop is around 4-5 hours (browsing on wifi, with sounds etc)
I hope puris.sm want to break out from this kind of practices :).
That’s why I asked the question.
I always take the advertised value and cut it in half. Seems to always hit the expectations and my usage.
It is hard to give good numbers, someone will always complain 
It also depends on the peripherals attached and included (amount of RAM, storage option(s) etc.). If your storage is SATA based I highly recommend to enable SATA link power management e.g. through powertop, which can save up to 1.5W!
Cheers
nicole
@wmlynarski also hardware calibrate your screen. DisplayCAL 3.8.1 - [Feature] Linux: Preliminary experimental Wayland support under GNOME 3 using colord
@nicole.faerber with librem 15v4. I just experienced that having around 10% battery the laptop suddenly shuts down. Even though gnome shows that I still have at least 15 minutes to work.
I have now the PoPOS installed but I experienced the same issue when I had PureOs.
Do you have a way how to set it up that the laptop will not “die” like that?