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S25 Ultra battery drain

(Topic created on: 07-02-2025 04:41 AM)
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krg21
Journeyman
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I bough the S25 ultra 512gb, On the first day, I charged it to 100% after doing the transfer from smart switch and I got almost 6 hours of SoT, I drained it to 0%, and after that I'm getting max 5 hrs of SoT in my everyday use, it is my 4th day today. 
i had done the transfer  through smart switch from my S24 ultra. also the "learning usage pattern" disappeared after a day or two. 
I don't know why i am getting such less SoT and battery back up. I've read on forums that others are getting around 9 to 11 hours of SoT. 
what should i do? 

62 REPLIES 62
Kld44
First Poster
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I got mine Friday and yes battery fast charges but i am at 50% and havent used it really- i may go back to apple at this point - 

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Chelsea Holstad
First Poster
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I got my S25 Ultra 6 days ago.  I charge my phone at night, unplug it at 8am and by 9:35am the battery is down to 82% and I've barely used my phone and don't have much open.  Battery Usage is 15% and it says I have 8 hours and 6 minutes left.  This is worse than my Note 20 5G Ultra I upgraded from.  What is going on?!?  I changed RAM from 8GB to 6GB yesterday and thought that would help but apparently not.

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flywolf
Apprentice
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Hey guys, I have had a great battery life since purchase. Recently I started noticing the phone is continuously warm without using and battery drains much faster. I did some troubleshooting and found one thing that was the culprit. I recently added few routines, one was to keep my phone unlocked when connected to my home wifi, it worked perfectly. I also added some other routines such as when I commute to work I get traffic etc. As soon as I deleted all my routines I was able to get great battery life and phone is not warm anymore. Hope this helps someone.

Saad11
First Poster
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Been 2 weeks still only get 8 9 hours that's pretty bad considering my 14 pro max 80 percent gets 10 plus

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Nmalik1
Apprentice
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I am having same issue very bad battey life. Did yours get better

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hiddenkoncept
First Poster
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Im also having issues. Reluctant to turn off ram plus, as dont want to slow my phone down.
I used smart switch, do we all have that in common?
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Clà1
Journeyman
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Same problem, I used smart switch as I did when I purchased my s21u and I had no problem with battery. 

I've got my s25u since 3 weeks and I'm not satisfied with battery, I have the same problem, max 5 hours of SoT. I've already tried to deactivate useless settings that drain the battery but I didn't notice so much improvements

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Bambatron
Navigator
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Same problem. Was 1.5 days before update. Now 23 hours max. Fast draining. 10% in the last hour with almost no use.

Azlan123
First Poster
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Yeah this is me too. Took of the charger before bed last night woke up this morning and battery @83%. No apps open, battery info shows only Google play services and meta as apps using 0.2-0.3% of battery 

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Nmalik1
Apprentice
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Same here it drains alot even when idle and battery app not showing anything