The Galaxy S22+ is sold with 45 W Super Fast Charging, but 9to5Google's test found it barely beats a 25 W charger: about 64 percent after thirty minutes on 45 W against 62 percent on 25 W, with a full charge in about an hour either way. So an S22+ that charges at a rate that seems slow may be behaving normally, and the question is whether it charges at all. For a phone that will not charge, test the cable and a Samsung charger, then clean the USB-C port of lint.
The checks in more detail
DroidWin's guide adds that Fast charging must be on in Settings, Battery and device care, Battery, Charging settings, and that heavy use, a case or heat slow charging. A 45 W charger needs a cable rated for 5 A, and a cheap cable limits it. After a software update some owners saw slower charging, and a restart or a cache wipe cleared it. If charging stops at a set level, check Protect battery, which limits the charge to 85 percent.
The phone's own screen tells you the charging speed when you wake it: Super fast charging, Fast charging or Charging, and the estimated time to full, so check the text and compare it with your charger's rating. If it says only Charging with a 45 W charger, the cable or the charger's USB PD profile is the issue. The S22+ has a feature Samsung calls Adaptive charging for overnight use in newer One UI versions, which slows the final part of the charge to protect the cell,
and the phone's charging notice may state that charging will complete later; this is not a fault. If you want a full charge fast, turn off Battery protection and Adaptive charging in Charging settings for that day. The S22+ also has a 45 W Super Fast Charging 2.0 mode that needs a 45 W PD PPS charger and the right cable, and many 25 W chargers will still work but more slowly. Check the charger's label for PPS support before blaming the phone.
Differential
Likely causes of “Samsung Galaxy S22+ will not charge or charges slowly”, and how to tell them apart
- 1
A weak cable or charger
What separates it Charging is slow or drops out
How to confirm Use a Samsung charger and a cable rated for the power
- 2
Fast charging off
What separates it The icon shows normal charging
How to confirm Charging settings: Fast charging on
- 3
Protect battery on
What separates it Charge stops at 85 percent
How to confirm Settings, Battery, Battery protection: Basic or Off
- 4
Lint in the port
What separates it The plug sits loose
How to confirm Clean it with a wooden toothpick
- 5
Heat or use while charging
What separates it Charging slows when the phone is warm
How to confirm Charge idle, without the case
Before you touch a setting
Record this first — changing settings destroys the evidence
- The charger and cable
- The percentage after thirty minutes
- Whether Protect battery is on
- Whether the port is clear
Try in this order
0 of 10 completedTry a Samsung charger and a rated cable
ReversibleA 45 W charger needs a suitable cable.
Clean the port
ReversibleUse a wooden toothpick with the phone off.
Check Fast charging
ReversibleSettings, Battery and device care, Battery, Charging settings.
Check Battery protection
ReversibleIt can limit the charge to 85 percent.
Charge idle and uncovered
ReversibleHeat slows charging.
Restart or wipe the cache partition
ReversibleIf charging slowed after an update.
Read the charging message on the lock screen
ReversibleThe text shows whether the phone is using Super fast, Fast or normal charging.
Test with a second cable
ReversibleCables wear out, and a worn one limits the power.
Check Adaptive charging
ReversibleIn Charging settings, see whether the phone is slowing the last part of the charge on purpose.
Check the charger's label for PPS
ReversibleA 45 W PD PPS charger is needed for the fastest mode.
Model-specific
What is true of this model and not of its siblings
- 45 W in practice
- Tests show little difference from 25 W.
- Battery protection
- A setting can stop the charge at 85 percent.
- The lock screen text
- It names the charging mode.
- Cable wear
- A worn cable lowers the charging rate.
- Adaptive charging
- The phone may pace the end of the charge overnight.
- 45 W needs PPS
- Not every USB-C charger supports it.
Stop boundary
When this stops being a self-service repair
- !If it will not charge on a Samsung charger and a clean port, contact Samsung
- !If the battery swells, stop using it
- !If charging stays slow after the steps, ask Samsung
Evidence ledger
Sources behind this answer
Test showing 45 W charging barely beats 25 W on the S22+.
Cable, charger and settings fixes for slow S22 charging.
Known S22 faults with fixes: camera, speaker, charging, Wi-Fi and more.
Exact questions
Common questions
Why does my S22+ charge slowly?+
45 W gives little benefit over 25 W, plus heat and cable limits.
What does Protect battery do?+
It stops charging at 85 percent.
How long is a full charge?+
About an hour.
Does the S22+ charge wirelessly?+
Yes.
How do I know it is fast charging?+
The lock screen says Super fast charging.
Does a worn cable limit speed?+
Yes.
Why does my S22+ stop at 80 percent overnight?+
Adaptive charging or Battery protection may be on.