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Honestly I just put several apps into sleep or deepsleep and when I really need battery I turn on DND.
I don't know why the changes are so drastic but in my device battery went up from 3-4hrs SOT to 6-7hrs SOT and from 12-16hrs stand by to 24-30hrs stand by.
Also just to clarify, I live in Brazil so there is no 5G here, only 4G. I also deactivate RAM Plus.
I do have to admit though, the default S21 FE experience leaves much to be desired because the battery is not enough.
Thanks for sharing your experience. So you're saying that turning on DND mode improve battery life? Is so, that's crazy!
Yep, I discovered it because I'm not someone who likes to be receiving anotifications every 5 minutes (which are mostly spam) and I wanted what iPhone users have that it throws you a summary of all notifications you have received every now and then.
So since there was no way of getting that summary on Android what I did is actuvate my DND and schedule it to get deactivated every 6 hours for 10 minutes so I can receive all the notifications within that time.
The side effect was an increase of battery that I didn't know was going to happen.
Do you somehow disable background refresh during that time? Because for me DND just silences notifications, but they still get delivered.
I check the option "hide notificatins from notification panel"
You will still "receive" notifications but they will appear on the notification panel when DND is inactive and not when it's active. Sorry, I expressed myself poorly in the previous comment, it's not that it will straight up block notifications from coming, it's more like putting you phone in silence for some time.
The reason I think this works is because the phone keeps vibrating/ringing whenever you receive a notification and that also consumes more battery.
Other than that, yes, as I said in the first comment I put some apps to sleep/deep sleep as well, depending on my use of those apps (idk if that's what you mean by background refresh).
You can install an app called galaxymaxhz. It can add dynamic refresh rate scalling so your display runs at 60hz when idle or playing video and at 120hz when interacting with the ui. You can also set a routine which disables 120hz when running apps like youtube, Netflix, etc. That should help with the battery effects of always running at 120hz
Really, well thank you. I stopped using 120hz on my 21 fe cuz it drained so fast. I noticed a big difference running 60 instead of 120.