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s21 poor battery life

(Topic created on: 12-07-2021 05:06 PM)
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megaC
Explorer
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Just received my s21 on Thursday 18th March, been using it for a few days. i've not even got all my apps setup, only downloaded. And have found the battery drains fast. 
Faster than my 3.5 year old pixel 2 xl. Which is odd. That this old phone with a smaller battery and more pixels lasts longer.
Is this an issue with exynos SoC? This is my first Samsung Android phone and so far I am not impressed.

3hrs 46mins screen on time, 29% battery remaining.
I am using the phone in 60hz. Bluetooth is off, adaptive brightness for the screen. I don't have it really bright, dark mode is set. WiFi is on(I am at home most of the time), 4g and mobile data enabled(i don't have 5g calling plan), no dynamic lockscreen/wallpaper.

What are you getting on on your s21?
Can I return the phone to Samsung if I am not happy? It was bought directly from Samsung online shop.
(UK version s21, Grey, 256GB,)

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Added screenshot to show latest OS update installed.
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24 REPLIES 24
lee815
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I think I could get 8 hours out of it but in work I can't always get a phone signal which drains the battery a fair bit.

Below is screen shot with the same sot as yours.

Screenshot_20210408-214633_Device care.jpg

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ribbo1974
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I've had the s21 since release I'm now on my 4th phone,battery life is so poor the new phone they sent I've had it 3 weeks I charged it last night opened my emails this morning and lost 8% within a minute
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megaC
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That sounds pretty bad 👎

I've switched to using Samsungs browser, and back onto 60hz mode. It's gotten a little better, but not huge improvements. I've decided to stick with it.
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Danielrz44
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Hi man, planning to buy an S21, how was battery life after all this time?

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megaC
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Hey there,
I'd say the battery life is pretty average, and just on par with my old pixel 2xl, in spite of this, I have kept the phone. The OS takes a little bit of time to adjust/optimise itself to how to you use your phone, I'd say this takes about two weeks for it to "learn" I don't think I am a heavy user.
Using the camera does seem to drain the battery alot, this is a exynos SOC - UK version.
Also to note, I have stopped using the chrome browser and just stuck with Samsung Internet for Web browsing.

To Summarise. Average battery life.
I would think twice for my next phone as I don't think I would go for another Samsung, I would wait to see what is available, but at the time the s21 seemed to be the most reasonably matched to my requirements
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