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?
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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!!
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!
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?
I got my S21 (regular $800) yesterday. Last night it showed 10 hour battery life estimated after I charged it all the way up and shut it down for the night. At 9am this morning I turned it on and it showed 18 hrs, 5 minutes like my old s9+ battery life. I been using it since and right now it's 6:06pm and the battery is at 67%. I haven't charged it since last night.
I read last night about others having the same issue as you so that made me worry that I spent $440 (I traded My s9+ for $440) and so I was panicking all night.
Well at least that how it is now its lasting over a day.
I am not a heavy user as most people. I wasn't even a heavy user with the s9+. I didn't even downloaded any games. I disabled unused or junk apps, deleted all the pre-installed apps (most of them that's junk), dark mode on, most notifications I don't use turned off, no social media (yet), fitbit app installed and hooked up to my fitbit versa 2 watch, myphonak app installed for my hearing aid, etc.
So I been watching YouTube videos for the past hour started with 78% and now 67%.
My suggestion to the new samsung galaxy s21, s21+, s21 ultra just wait at least 1 week so the phone can recognize the battery usage and turn off or disable apps that you don't use. Put some apps to sleep or deep sleep so they don't use up battery (recommend all apps except the phone call app and texting), dark mode on, 30 sec auto sleep, adaptive brightness on, etc.
If any new samsung galaxy s21, s21 +, s21 ultra and having issues with battery life within the return period (for me Verizon gave me a 15 day return started yesterday) and you tried everything online says and nothing had worked
Go to the carrier or store where you brought the phone and tell them about the battery issue. They might can either replace the phone for a replacement one or tell you what you can do further.
My recommendation for new samsung galaxy s21, s21 +, s21 ultra is buy the phone either at a phone carrier like Verizon, t mobile, sprint, etc as they can always help you troubleshoot the battery or replace it within the return period or in my case while I am making monthly payments for 24 moths at Verizon they can replace the phone and give you a refurbished phone.
If new users don't want to go to carriers my recommendation is to go to a best buy store (not walmart) and make sure to get the 1-2 year geek squad protection plan so that if there's a issue like the battery the geek squad is the best way to get immediate help because walmart or target or amazon won't have a clue what to do.
My highly recommendation before you go to carriers or stores keep the phone for in my case up to 15 days and make the phone go dead and charge back up to recalibrate the battery at least 2-4 times and see if that helps.
when i got the phone at verizon it had 25% so i made it go dead and charge back up and i am not using it alot so i can get 20 hours no problem but i am going to fully drain it again and recharge it to get the estimated time fixed as it is displaying the wrong time.
So far I am happy with this and managed to get it to work
Hope this helps you or new users