Original topic:

UI 7 Battery is Draining fast

(Topic created: 06-07-2025 04:33 AM)
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DDA45
Asteroid
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Galaxy S21

Is it me or the stupid Update drains the whole dang Battery life literally charged my phone to 85 percent then went down to 65 percent fast I imagine might aswell just kill my battery 

user5vU5CViEee
Cosmic Ray
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Galaxy S21
Is Samsung doing g this on purpose like apple did? This is messed up if so. We need to get to the bottom of this. 
yerga
Constellation
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Galaxy S21
Same issues as well and when apple did it i left that company and became an android user
Blaine_Bug
Cosmic Ray
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Galaxy S21

Hah, as you know, it's only considered a monopoly if the corporate snobs discuss it amongst themselves (or haven't paid off the right politicians to look the other way).

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userIutKdTkP8O
Asteroid
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Galaxy S21

I just noticed by now that on wireless charging, it couldn't go above 86%. I've had to physically charge it now.

I have tons of apps that have already been sent to a deep sleep anyway, that I'll have to look into it further. I don't know if it is also relevant, but I also got a notification that Link for Windows has had an unsual spike of data being used. The thing is, I barely use this feature itself, and for that matter it isn't on through most times, so it shouldn't be trying to connect to anything or getting data. I'd wonder if something about this update is just causing apps to drain the battery in the background as much as data, as this wasn't happening to my knowledge before the update.

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usernzvGlre2wV
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Galaxy S21
Hi. I have unbelievable draining of the battery after I updating my phone to the new android version 15 UI 7, that is cruzy. Anyone guys could explain what's going on . Thanks 
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meself
Honored Contributor
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Galaxy S21
It's affecting several models nit seen anything of a fix mentioned but there might be something
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Mujibar
Honored Contributor
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Galaxy S21
See this post for more info and some things you can try to mitigate the battery drain.

https://us.community.samsung.com/t5/Galaxy-S-Phones/Battery-drain-on-One-UI-7/td-p/3220005?src=Share...
3SeasonsOnline
Constellation
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Galaxy S21
Also having this issue
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Blaine_Bug
Cosmic Ray
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Galaxy S21

UI7 destroyed camera usage for many by instituting a handy bug where there is an immense delay when using the camera, but thankfully, battery life was NOT affected by this update.  I recall earlier this year though, one of the other updates (of many, many updates, hard to keep track of!) affected me similarly - where battery was draining very quickly with no other software changes or personal behavioral changes made.

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alamin753
Cosmic Ray
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Galaxy S21

Battery drain after updates can happen. Try clearing cache or checking for any apps using excessive power. If it persists, consider contacting Samsung Support for assistance.

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