[Galaxy S 5 Android Development (Snapdragon)] Oswald Boelcke:
Stefan, first: I'm convinced the Corinna you mentioned isn't the one you wanted to mention. You drag her attention via this mention: @cvxda.

Question: What do you mean by drainage when the phone is off? Totally switched off? That's usually an indication for a "poor" not necessarily old battery but simply one in really bad condition. Quite often these batteries start to bulge and are getting hot while charging. However, unless you also experience something like this on RR-N it's most likely not the culprit. Or do you mean drainage while the screen is dark/turned off e.g. during the night?

In reference to the in the above port attached BBS idle log I cannot confirm the latter case. At least on my decise with my battery and setup, no excessive battery drainage on RR-O while "resting for the night's sleep".

Different to you, I definitely don't want to go with Oreo (and I've alraedy the feeling same will apply to Pie). No, really no advantages for me rather vice versa. Around noon, I finished my "mission preparation" on RR-N-v5.8.5 and we "took off in full afterburner". Just after a few hours "of flight" I knew RR-N-v5.8.5 is the fighter aircraft I wanted to handle. At least, the first acrobatics, loopings, Immelmann etc. and basic fighter manoeuvres looking very promising. Upcoming night, we'll see how the fuel endurance looks like. Currently my procurement agency has the impression that Corinna's RR-N-v5.8.5 can become the main and major weapon system in Oswald Boelcke's Android Space Self-defence Force.

And I don't need to ask Corinna for any RR-N updates and don't require security patches but rather allow her the time she needs for her priority projects. Security patches certainly don't have a high personal preference for me as I've developed my personal best practise and utilisation policy for the devices over the time. Anyhow, I know that e.g. the current vulnerabilities in our CPU won't be closed with almost absolute certainty but the items on my wish list are available in between the lines of my other posts in this thread. Just to tag a few things I try to consider: Don't use the device for everything it might be capable to provide! No online banking, no payments at all! No confidential data on the device! Utilise tools and implement procedures to protect privacy to the absolute maximum content! Always ask yourself, does any application has really a need-to-know, need for specific permissions, need for root access! Use logging tools to observe "communication behaviour" of installed applications! Fake data as much as possible!

In case you already know them I apologise but if interested maybe a few of my threads might draw your attention (clearly without the intent to promote them myself). I know they are referrencing a different device but can easily be adopted to the G901F:

https://xdaforums.com/android/general/how-enhance-battery-duration-sgs-3-lte-t3478287

https://xdaforums.com/galaxy-s3/general/gapps-free-samsung-galaxy-s3-lte-gt-t3553620

https://xdaforums.com/raspberry-pi/help/pi-hole-pivpn-powered-raspberry-pi-3-t3768983

EDIT (2018-08-13): Update on battery drainage at post #1178.