I think I will stick with the Location setting change.
I'm also finding TuneUp Master Pro to be helping.
What do you think of BetterBatteryStats?
Later today, I can post screenshots.
Right now, I am at 63% battery left with 2 hours of screen time. (Note, much of this has been with super low battery brightness.)
Hey,
I think TuneUp Master Pro might help you, I haven't actually used BetterBatteryStats.
But I saw your screenshot, one thing I noticed is that you keep bluetooth switched on (Android Wear)?, If so then I think maybe that is your issue (I'm saying this cause I have a Gear 2 connected to my Note8, when the device is connected it takes some amount of battery). Try to use your device without bluetooth for maybe 1 day and see if there is any improvement in Battery Life and Screen On Time.
I would suggest other basic options like:
1. Turning off Location when you don't need it
2. Turning off Bluetooth
3. Turning off Mobile Data (or keeping the network mode to 3G/2G)
4. Delete useless apps, if you have apps like BetterBatterStats, I think they can monitor app data and battery usage.
5. Goto Settings>Device Maintenance>Battery, scroll down till the end and select "always sleeping apps", select apps that you want only to wake up when you open the apps. Go back and remove useless or unwanted apps under the unmonitored apps section (This option is right before the always sleeping apps one).
Also try doing a cache clear from Android Recovery (Be Careful when selecting the options):
1. Turn off your phone
2. Hold the Volume Up, Bixby and Power Button simultaneously until you see the boot screen, as soon as you see that screen release your fingers from the buttons
3. Once the recovery options come, use your volume buttons to move up and down, and the power button to select an option.
4. press volume down and select the clear cache option, press the power button, use the volume down button again to select "Yes" and press the power button.
5. It will clear Cache
6. Restart your, its the first option in the menu.
This might helps the phone clear cache files and maybe fix your battery issue.
It would also be good if you install this
app, after installing goto the "Personal" tab and check if your battery health is good, mine is 91%. You should also be in that range or maybe 80%. If the percentage is bad then maybe I think you would require a battery replacement. Correct me if I am wrong guys, but just a suggestion.
One more thing, is your phone rooted or having a custom rom?, if yes I suggest to try Naptime and other rooted battery saving apps like Greenify.
If not then I think you and me will have to hope that Android 9.0 Pie would have some improvement, sadly I have been a Samsung user for 4 to 5 years, this isn't usually the case with Samsung OS updates

.