The Galaxy S24+ has a 4,900 mAh battery, which is a big step up from the S24's 4,000 mAh, and it needs it: the S24+ has a larger 6.7-inch screen that can run at QHD+ and 120 Hz. When an S24+ owner asks why the battery is falling faster than before, the answer divides into three. Hardware wear after more than two years of charging is the ordinary one. Display settings that the phone shipped with are the cheap one to change. And the one that fills Samsung's forums is the standby drain that some owners describe after One UI 8.5. Take them in that order: settings first, patch second, battery test third.
Differential
Likely causes of “Samsung Galaxy S24+ battery drains too quickly”, and how to tell them apart
- 1
QHD+ and 120 Hz on a 6.7-inch panel
What separates it Screen on time is the biggest consumer by a long way
How to confirm Settings, Display, Screen resolution to FHD+ and Motion smoothness to Standard, then compare the next day
- 2
A One UI 8.5 background job
What separates it Standby drain began after the update and the phone is warm overnight
How to confirm Install the newest patch, restart, and watch two or three nights
- 3
One heavy app
What separates it One app is several times larger than the next in Battery usage and most of its time is in the background
How to confirm Settings, Battery, Background usage limits: put it to sleep
- 4
A cell worn by two years of charging
What separates it Percent falls in steps, or the phone shuts off at 20 to 30 percent
How to confirm Samsung Members, Get help, Phone diagnostics, Battery status
- 5
Hotspot or tethering left on
What separates it Battery usage shows Hotspot and the phone is warm on the desk
How to confirm Switch the hotspot off in Quick settings
Before you touch a setting
Record this first — changing settings destroys the evidence
- The current screen resolution (HD+, FHD+ or WQHD+) and refresh rate
- Your overnight loss between bedtime and morning with Wi-Fi on
- Whether Hotspot, Bluetooth or location ran overnight
- The battery verdict from Phone diagnostics
Try in this order
0 of 6 completedLower the display load for a day
ReversibleOpen Settings, Display and set Screen resolution to FHD+ and Motion smoothness to Standard. Judge the next day's battery before changing anything else.
Read the usage chart honestly
ReversibleSettings, Battery, Battery usage lists each app's share. An app with most of its minutes in the background is the one to restrain.
Restrain the biggest background user
ReversibleUnder Background usage limits put the app in Sleeping apps, or Deep sleeping apps if its alerts do not matter.
Install the newest patch and restart
ReversibleSettings, Software update, then restart; the One UI 8.5 drain reports on Samsung's forums are followed by patches.
Rebuild the system caches
ReversiblePower off, hold Volume up with the power key for Recovery and choose Wipe cache partition.
Get the battery verdict
ReversibleSamsung Members, Get help, Phone diagnostics, Battery status.
Model-specific
What is true of this model and not of its siblings
- What the S24+ adds over the S24
- A larger 6.7-inch QHD+ screen, 4,900 mAh instead of 4,000 mAh, 12 GB of RAM, 45 W charging and 256 or 512 GB of storage.
- Seven-year promise
- Because Samsung committed to seven years of updates, a worn battery is worth replacing rather than abandoning the phone.
- The case for a bigger battery
- At 4,900 mAh the S24+ has about 22 percent more capacity than the S24, which is why an S24+ that still needs a mid-afternoon charge is more likely to have a software or display cause than a worn cell.
- Where the screen setting hides
- Settings, Display, Screen resolution lets you choose HD+, FHD+ or WQHD+, and the S24+ will use the highest you pick for everything; owners who switch from WQHD+ to FHD+ rarely notice the difference on a 6.7-inch screen but do notice the battery.
- Reporting a drain to Samsung
- Use the Samsung Members app, Get help, Error report; owners on Samsung's forums say agents asked for it before offering a repair.
Stop boundary
When this stops being a self-service repair
- !If the Phone diagnostics battery test comes back poor, the S24+ is a candidate for Samsung's battery replacement, which is a service-center job
- !If a clean Safe mode night still loses a fifth of the charge, send the Samsung Members error report before you visit, since agents ask for it
- !Do not keep charging a phone that has a bulging back; take it in
Evidence ledger
Sources behind this answer
Exact questions
Common questions
How big is the Galaxy S24+ battery?+
4,900 mAh, which is about a quarter larger than the S24's cell.
Does QHD+ cost battery on the S24+?+
Yes. Samsung defaults to FHD+, and moving to WQHD+ raises power use noticeably on a 6.7-inch screen.
Why did my S24+ drain after One UI 8.5?+
Owners of the S24 family describe standby drain after it; install the newest patch and send an error report if it persists.
How long will an S24+ keep getting updates?+
Samsung promised seven years of OS and security updates for the S24 line, so a worn battery is worth replacing.