Re: My own Galaxy S6 Battery Test
I have:
- Upgraded to 5.1.1, baseband version ending with COH2.
- Used TW with a completely black background.
- Set location, Bluetooth, screen rotation off.
- Disabled as much bloatware as I dared to.
- Turned off any sync which I didn't think I needed.
- Installed Doze (exceptions: clock and apps with push notifications).
- Used black/white foreground/background where possible (allows fonts to be read with reduced screen brightness).
- Set camera HDR setting off (I can use the camera a fair bit sometimes).
- Installed a minimal number of widgets on the home screens.
- Set haptic feedback on (I can't do without this).
I think the above did extend my battery life a little, but the most dramatic change came when I changed screen settings from the default Adaptive to Basic, then put the screen brightness down real low to around 10-15%. I'm not really happy about this because one of the reasons I bought the S6 was for the great screen - and now I'm one step shy of straining my eyes to see what's on the screen. But heck, its better than having the battery dying on me halfway through the day. Occasionally, I do crank up the brightness just temporarily just to read something, especially when outdoors.
I should be considered a light user (no games, no music, no videos, occasional light surfing) and now get SOT of around 2+ hours. I charge my phone once a day, at night, that's when the battery level is usually at around 10-15%. After its fully charged, I plug it out, switch to Ultra Power Saving mode, to then go sleep.... and only switch back to normal usage mode when I wake up in the morning.
For my phone, battery drop doesn't seem linear. It drops real fast between 100-80% - maybe that's the time when I wake up and read a bit of news, check currency exchange rates, speed read through Facebook, etc. From 80-45%, the rate of drop slows down. Below 45%, battery drop accelerates again.
Mine's a G920FD S6 duos.