Issues with the battery life :(

[blackhawk]

I've come from three to four years of using some Chinese devices, including Huawei, Xiaomi and Realme, which use the same flagship Snapdragon chips as the main Android OEMs (bar Huawei) do and the battery life is remarkably good on those. So coming to the S21, the battery life certainly feels average and this is compounded by the fact that charging is very slow. I guess I got spoiled by Realme's 28m 0-100 charge times.

So far, I love the design and the feel in hand of this device. Brand recognition too, if there's such a vain thing. But there's a lot of love hate confusion I'm getting with it. I got tired of buying Nexus and Pixel and Sony devices and tried the Chinese offerings, and I must say I was pleasantly impressed. Good to be back with this very attractive little powerhouse. Wish the software was not so taxing on the battery.

Actually the OP screwed up. The Note 10+ is one on the best phones Samsung has released in years. A big plus is it's running on Pie... or should be.
I get good battery life on my Note 10+ after optimizing it, which was really fun, not

Samsung's are the most customizable stock phones out there. Like optimizing them it takes time and effort. Once done it's good to go

 

[wasz12345]

Hi, I have the galaxy S21 256gb exynos version, im getting very bad battery performance..
How do you guys get like 5 hours sot?

Only 4 hours sot and went to 2%..
It drain so fast..
Also, I almost can't charge with slow charger, when trying to charge with regular charger i got from 1 hour of charging only 7%

 

[subhani]

Hi, I have the galaxy S21 256gb exynos version, im getting very bad battery performance..
How do you guys get like 5 hours sot?
View attachment 5305797

Only 4 hours sot and went to 2%..
It drain so fast..
Also, I almost can't charge with slow charger, when trying to charge with regular charger i got from 1 hour of charging only 7%

4 hours over 2 days? Or over what period of time?

 

[wasz12345]

4 hours over 2 days? Or over what period of time?

Yes in like day + standby night

 

[blackhawk]

Yes in like day + standby night

If AOD is set to tap on (or turned off) and nothing is running in the background (as it should be if optimized) usage at night will be about 2-3%.
If AOD is always on, about 0.7-1%@ hour.

 

[blackhawk]

4 hours over 2 days? Or over what period of time?

WhatsApp and Instagram are sucking battery as well as privacy.
Google Play Services is a habitual offender as well; I keep it disabled unless I need it.
Playstore*, Google Backup Transport and Google Framework are package blocked or disabled.

With all that junk running that battery may be in good condition


*unless needed

 

[subhani]

Yes in like day + standby night

This isn't like it's faulty. That's the kind of battery life expected on small powerful phones. It could certainly be better. Small iPhones have the same problem. The Pixel 5 is the exception due to a mid range power friendly 7 series chip.

 

[blackhawk]

This isn't like it's faulty. That's the kind of battery life expected on small powerful phones. It could certainly be better. Small iPhones have the same problem. The Pixel 5 is the exception due to a mid range power friendly 7 series chip.

On faster, more powerful platforms poorly designed apps can abuse that speed and it can rapidly add up as excessive battery consumption. You won't notice a slow down most times but the phone will run warm as it runs the extra cpu cycles.
Good if you need a hand warmer otherwise not.

 

[lawonga]

Got the may update. I think they fixed battery life, it seems to be about 20% better than previously.

They also fixed my camera lag too. Yay!

Exynos here.

 

[obamaforever]

Is it only possible to download the modules tht is in magisk or can I install modules that I find outside magisk too?

Is there any good battery saving module?

 

[davedes]

Guys, my 14 old days S21 with last update (i think it was on the 8th of February) is in really bad shape. Look at this screen. 10h with 1h 15m SOT and 40% battery.

smart launcher draining.

 

[obamaforever]

If AOD is set to tap on (or turned off) and nothing is running in the background (as it should be if optimized) usage at night will be about 2-3%.
If AOD is always on, about 0.7-1%@ hour.

Wow. Good.

I have debloated my phone heavily and still have 4 % battery drain on idle every hour even with mobile data turned off. How can I get 2 % every hour? What have you done?

AOD is off of course.

What can I do to improve it?

 

[obamaforever]

On my S21 Exynos I'm finding the battery life fairly good.

It's mostly on wifi but 4G and Volte is on I get about 5.5 to 6.5 SOT with 120hz and normal mode (not power saving).

If left alone the the standby time is good, dropping about 0.4% per hour.

The one thing I have noticed that seems to kill the battery is using the camera, this looks to use about 30% an hour, fine if you're capturing an odd snap but it mounts up if you try and use it a lot.

It even uses a lot of power just with the camera app open and the viewfinder showing waiting to take a picture.

How do you guys get less than 1 % per hour on idle? I havet about 5 % every hour and it is heavily debloated. A lot of bloatware is uninstalled.

Can someone explain this?

SOT and standby are equal but I have not used The phone as long as it says.

Why?

 

[davedes]

My S21 battery stats from yesterday. Running July apdate. Using galaxy max Hz with screen adaptive display set to 96/48Hz. Bixby routine set to turn off Bluetooth, mobile data and location services when connected to wifi.

 

[blackhawk]

Wow. Good.

I have debloated my phone heavily and still have 4 % battery drain on idle every hour even with mobile data turned off. How can I get 2 % every hour? What have you done?

AOD is off of course.

What can I do to improve it?

Disable cloud apps.
Google backup Transport, Framework, Firebase and Google play Services are know serial offenders

 

[davedes]

Disable cloud apps.
Google backup Transport, Framework, Firebase and Google play Services are know serial offenders

How do you download & update apps with most of your Google apps and services disabled?

 

[blackhawk]

How do you download & update apps with most of your Google apps and services disabled?

Enable and reboot for Playstore.
For Gmail or Gmaps, just toogle on Google Play Services.
Otherwise it runs better without these apks.

I gave Google what it deserves... a big cup of STFU

 

[obamaforever]

Disable cloud apps.
Google backup Transport, Framework, Firebase and Google play Services are know serial offenders

All that is diasbled, but still the drain. My Parental controll menu is even gone. I cannot see SOT anymore. How do I get that back?
Did I debloat to much maybe?

 

[blackhawk]

All that is diasbled, but still the drain. My Parental controll menu is even gone. I cannot see SOT anymore. How do I get that back?
Did I debloat to much maybe?

Android Turbo needs Google play Services to run I believe.
Accubattery gives better SOT history so that loss of functionality doesn't even concern me anymore.
I also use Galaxy Labs Battery Tracker.

Tracking down the responsible apks/services can be challenging. Clearing the app cache and seeing what pops up first can sometimes be helpful. A lot of junk is running under Android Services too, these can be difficult to ferret out.
All cloud apps will eat bandwidth and power with screen off.

Get rid of WhatsApp, FB, Instagram, Twitter, any shopping apps, etc. They are malware, battery hogs and security risks that don't need to run as apps. If the forum, site etc can't be accessed/used online through the browser, don't trust it. FB I'm looking at you
No clue what load Parental Control puts on resources as I have no need for it.

Karma Firewall is a great freeware app that uses almost no battery. With Android 10 and above it's valuable logging feature isn't fully usable although it still will block. There may be a work around. I'm still running on Pie on a stock AT&T variant.

Its not one thing; I've use many different tools, methods and settings to optimize my 10+ over the last 1.5 years. It's ongoing.
Do not update the OS as it only changes the playing field making optimization much harder and generally provides little security improvement. Most malware is introduced by the user... there's no saving dumb bunnies

 

[ems328i]

Android Turbo needs Google play Services to run I believe.
Accubattery gives better SOT history so that loss of functionality doesn't even concern me anymore.
I also use Galaxy Labs Battery Tracker.

Tracking down the responsible apks/services can be challenging. Clearing the app cache and seeing what pops up first can sometimes be helpful. A lot of junk is running under Android Services too, these can be difficult to ferret out.
All cloud apps will eat bandwidth and power with screen off.

Get rid of WhatsApp, FB, Instagram, Twitter, any shopping apps, etc. They are malware, battery hogs and security risks that don't need to run as apps. If the forum, site etc can't be accessed/used online through the browser, don't trust it. FB I'm looking at you
No clue what load Parental Control puts on resources as I have no need for it.

Karma Firewall is a great freeware app that uses almost no battery. With Android 10 and above it's valuable logging feature isn't fully usable although it still will block. There may be a work around. I'm still running on Pie on a stock AT&T variant.

Its not one thing; I've use many different tools, methods and settings to optimize my 10+ over the last 1.5 years. It's ongoing.
Do not update the OS as it only changes the playing field making optimization much harder and generally provides little security improvement. Most malware is introduced by the user... there's no saving dumb bunnies

Great call on the Private DNS, thanks very much!