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Original topic:

Samsung s21 galaxy ultra battery drain?

(Topic created on: 07-08-2021 10:40 PM)
Dikarvou
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Galaxy S21 Series

Hello guys

 

I am using my s21 ultra for two months now. I am not very happy with battery life. I don't use 5g. I got 16 apps on deep sleep mode and rest 4 on sleep mode. I have 120hz on and wqhd+ screen. I do love dark mode and screen brightness is on auto! I don't tend to charge my phone over 80 often to maintain buttery health. But the battery health is terrible! I am posting some pics. I would love to tell me what you think. Is this normal?

Screenshot_20210807-225921_AccuBattery.jpg

Screenshot_20210807-225816_Device care.jpg

Screenshot_20210807-225806_Device care.jpg

  

Screenshot_20210807-225754_Device care.jpg

Screenshot_20210807-225743_Device care.jpg

Screenshot_20210807-230354_Device care.jpg

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Solution
Slizzered
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Galaxy S21 Series
Aside from TikTok, Chrome and Snapchat being notorious battery hogs, the type of signal you use could also have a big difference.

Look at these 2 screenshots, the first one is 40% drain from using mobile data with a poor signal all day, only 1 hour 40 SOT. The second one is 48% drain with WiFi on all day, same usage, screen on WQHD+ (I even had it on FHD+ before) and Bluetooth on etc, and will probably get 5 hours SOT in 50%.

I notice that at one point your SOT was 48 minutes but your battery only drained 6%, was you using WiFi here or doing anything different?
Screenshot_20210806-184123_Device care_313.jpgScreenshot_20210807-220045_AccuBattery.jpg

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Dikarvou
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Galaxy S21 Series

Most of time I use wifi. Rarely I use mobile data. With mobile data I always afraid about huge battery drain!!! 

It seems that this phone have a horrible battery life.  I understand that Chrome,snapchat  and tiktok are heavy drainer apps but still.... I usually got around 5 -7 hours SOT. With GPS and data on.... it's nightmare!!

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Pugs1957
Superuser I
Superuser I
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Galaxy S21 Series
Usually got around 5-7 hours SOT on what? If it was a previous device running Android 10, this is the reason. Most social media apps are not fully compatible with Android 11.
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Dikarvou
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Galaxy S21 Series

I tend to use emails a lot like BlueMail. And live chat with clients on tawkto, a lot of chrome for browsing!! 

 

I use snapchat after work, same with tiktok. Facebook and Instagram very rarely! And that's all! No Bluetooth, no GPS!

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Slizzered
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Galaxy S21 Series
Yeah, that doesn't seem right. According to Accubattery, what is your deep sleep percentage? It should be 85%< ideally otherwise you have some pretty active apps in the background.

From what I've read, Chrome is actually one of the most unoptimised apps you can use, and it's clear here since it's taking up nearly 20% of your entire battery life, which is crazy! Try Samsung Browser.

You shouldn't have to optmise the phone any further than you have, I was doing this when I was having battery issues, and then I decided to put all the draining settings back on because ultimately I should be able to use all the features in a phone I paid nearly £1200.

But like I said before, you're definitely certain you wasnt doing anything different when you had the 6% drain with 49 minutes SOT? - that would equal 8 minutes per 1% loss, leaving you with 13hours + SOT at that rate. That is a lot more reasonable in terms of battery life.


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Dikarvou
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Galaxy S21 Series

Sadly accu doesn't work! It still says waiting for measurements! 🤪

I saw some posts here with ppl claiming 24 h battery life! Is that even possible with this device with most features enabled?? 

But you are absolutely right. 20% is crazy! Do you think aod is draining a lot? 

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Slizzered
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Galaxy S21 Series
I wouldn't pay too much notice to it anyway, it's great for charge/discharge stats but estimates are always way off until you've charged it maybe 5-10 times.

It's definitely possible yeah, with average use. I could possibly get 24 hours battery life (not SOT btw) if I use WiFi all day and I have many features enabled. I've seen people get something crazy like 2 - 3 days battery life with light usage.

AOD would drain a bit yeah, it would show up on your battery stats however so it obviously isn't the worst offender, that appears to be Chrome
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