It appears that even most Linux users will admit that battery management in Linux is bad. - https://www.reddit.com/r/linux/comments/1gtgpkb/does_linux_have_better_battery_management_that/
Battery management related factors in which off-gassing can occur:
- Overcharging: Excessive charging can cause the decomposition of electrolytes within the battery, leading to gas generation.
- Overheating: Like off-gassing, excessive heat can trigger thermal runaway by destabilising the battery’s internal chemistry.
- Over-discharging: Discharging a battery beyond its recommended limit can also result in the release of gases.
If you insist on using a Linux on a laptop or portable device, consider: How to optimize laptop battery life with TLP on Linux
battery management in linux has always been awesome: run only needed services, dont abuse resources more than needed. under linux laptops battery always lasted way longer during usage (standby should be the same,right? eh, except for apples crapbooks - see below) than the tests running windows. one thing that i could not compare directly (didnt do that test) is that on linux laptops batteries lasted long-term seemingly way longer than those of roughly same time bought windows machines but those were used by others so i could not really tell for real.
however the superflous systemd bugware changed with the tradition of not needlessly exhaust resources after beeing forced by some entity into lots of distributions, but systemd is not linux and you can use linux without superflous resourcedepleting crap like that.
however i am not a user who needs standby or uses hibernate and i completely dislike screen savers like reducing brightness or turning off monitors “after a while”. luckily i use linux and can set such settings as i want AND they also work as configured (see crapbook fuckups below). for security reasons i lock my linux screen when i need to, otherwise it runs on the brightness i set while i use it, same on battery or not, wether battery low or full.
i luckily cannot compare current windows act-as-if-windows-was-powersaving as i haven’t administrated one of those malware-distribution-platforms from microsoft for ages.
at work i have to use a crappy apple macbook and battery management is a full -10 (minus!) hell (out of 0-10 points) there:
linux power and battery management works just fine for me, no hassle, does what it should and what i need =)
the linked page about TLP shows more how to install it than what it does, only the thing about not fully charging the battery could be helpful, but is not what i want to use right now, but thanks for the information that it exists ;-)