General Battery life experience

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BaltazarIX

Senior Member
Aug 10, 2013
130
31
Baranowo
Samsung Galaxy S21 Ultra
Anyone got anything on this ? Currently with 52% battery left with 2hours 10 of screen time which is laughable

Exynos, April update
Very similar story in my case. Exynos, April update:

FHD, 120Hz, 4G only, Nearby devices scan off, Wi-Fi energy saving on, Pocket mode off, and probably more settings which I can't remember just to save more battery
 

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Goku1992

Senior Member
  • Feb 29, 2016
    666
    134
    Dortmund
    32% left. April Update but with 60 hz...
    Nothing to complain. Are you using Facebook instagram ****? Dont use gsam its only eating your battery...
     

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    walox

    Senior Member
    Jan 1, 2013
    181
    34
    I have the same problem with April update. 50% battery with 2 hours or a little more SOT. I really hope that may update will be better, I've tried everything in this post (factory reset, don't use smart swicth, debloat a lot of samsung apps, etc)

    Really really disappointed 😞. In fact, write this post and check some stuff in whatsapp and now I have 96%
     

    adamlee2012

    Senior Member
    Jun 11, 2012
    1,384
    344
    United Kingdom
    Samsung Galaxy S21 Ultra
    I have the same problem with April update. 50% battery with 2 hours or a little more SOT. I really hope that may update will be better, I've tried everything in this post (factory reset, don't use smart swicth, debloat a lot of samsung apps, etc)

    Really really disappointed 😞. In fact, write this post and check some stuff in whatsapp and now I have 96%
    Yesterday's results where good. Today results are a bit bad. Phone has been draining quicker today for no reason. Seems very inconsistent. May update AUE1
     

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    mtm1401

    Senior Member
    Apr 10, 2018
    347
    116
    Samsung Galaxy S21 Ultra
    Very similar story in my case. Exynos, April update:

    FHD, 120Hz, 4G only, Nearby devices scan off, Wi-Fi energy saving on, Pocket mode off, and probably more settings which I can't remember just to save more battery
    I mean your phone has been on for nearly 35 hours including some music streaming which I assume happened whilst the screen was off, that's hardly bad.... SOT is only any use as a metric when used in context with standby, app usage etc.
     

    BaltazarIX

    Senior Member
    Aug 10, 2013
    130
    31
    Baranowo
    Samsung Galaxy S21 Ultra
    I mean your phone has been on for nearly 35 hours including some music streaming which I assume happened whilst the screen was off, that's hardly bad.... SOT is only any use as a metric when used in context with standby, app usage etc.
    Yes of course, that's 100% correct.

    The different thing is that I never had such big battery usage with Tidal on mine OnsPlus 6, or maybe the statistics are calculated differently on those devices.
     
    Android 12 could make the S21U a beast for performance and battery life. I've found performance to be good anyway.. battery could be better. Guess we'll have to wait for Android 12.
    Yeah, hopefully.

    But I'll wait cautiously before installing the first few builds.

    Did you hear about the Android 12 beta bricking the OnePlus 9 series after early adopters jumped and flashed the first beta build? OnePlus has since pulled the update, but all majow platform upgrades are inherently risky in the beginning.
     

    joloxx9joloxx9

    Senior Member
    Jul 6, 2011
    919
    144
    Android 12 could make the S21U a beast for performance and battery life. I've found performance to be good anyway.. battery could be better. Guess we'll have to wait for Android 12.
    Yeah yeah yeah sure, I think every year we can hear same story unfortunately. Even if they improve everything by 50% we will face a dodgy google play services update, or one memory leak etc and we will have even more battery drain than now, then after 6 months when they fix it, there will issue with something else.

    I am really sceptic and to be honest, I would like them to not break the battery which is quite good at the moment.
     

    adamlee2012

    Senior Member
    Jun 11, 2012
    1,384
    344
    United Kingdom
    Samsung Galaxy S21 Ultra
    Any possibility the Samsung health activity tracker is the culprit trying to count your steps and distance moved?
    Nope I don't use Samsung health. Something keeping it awake while moving. When phone is stationary it's fine. 🤔🤔🤔🤔🤔
     

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    • 2
      Guys, do you have any problem with low battery %? It happened twice with me, when the battery decreased to 5% the s21u shut off in less then 5 minutes
      Yes mine does same. It's normal as it's to prevent the phone discharging below 0% it actually still has battery when it powers off. I've only drained mine twice as it's not good for health. If possible keep it above 20%
      2
      My battery life has been in the toilet since the May update.
      2
      It maybe stupid, but do you loose first 2% in just couple of minutes after unolugging? It looks like in my case that I can unplug, leave it on my desk and after 10 min there will be 98%?
      100 to 99 in like 10minutes of doing nothing 🤣
      2
      I have the Exynos version and after the May update my battery life went to ****. After reading this thread some users suggested clearing the cache so I figured out how to do that and while I was in recovery did an app repair as well. Now my battery life has gone back to being absolutely excellent 👌🏽 standby battery performance has also improved. I'm happy that I didn't need to reset my phone.

      I noticed some users setup via smart switch, but I didn't. I used the Google backup feature from previous Android phone
      2
      I spoke to Samsung on twitter and they claim a 21% loss over 7 hours is normal 🤣 when the phone isn't been used.
    • 4
      Hey guys,
      So a month after the launch of the Galaxy S21 Ultra, what is your battery life experience? Give us your feedback and numbers.
      Please mention your chipset (Exynos or Snapdragon) and post a screenshot if possible.

      Personally, I'm pretty satisfied with battery life. I usually get a day and a half with around 9h of SOT. I have the Exynos model and my screen is set to 1080p with standard motion smoothness. Bluetooth is always on and I use 4G most of the time. All other settings are set to default.

      Screenshot_20210303-104227_GSam Battery Monitor.jpg
      4
      Please post the debloat list when you get the chance. Thanks!
      Hey mate sorry for the long wait, here it is:
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      3
      Android 12 could make the S21U a beast for performance and battery life. I've found performance to be good anyway.. battery could be better. Guess we'll have to wait for Android 12.
      3
      zsPWLtE.png


      I got the Exynos version.
      2
      Can't complain, I get around 5 hours SOT a day with 30 to 40% left in the tank.

      That said, I am stuck at home all day on WiFi, so sure that will decrease when I'm out and about with location on and 4g/5g but still pretty decent.

      Exynos, QHD, 120hz, active 2 connected all day, some debloating and Bixby routines to switch to 60hz for some apps, turn off location/NFC/4g at home and sync/AOD on when charging

      Screenshot_20210303-170136_GSam Battery Monitor.jpg