The Galaxy S26+ is the middle phone of its family and charges at 45 W wired, so its owners notice slow charging more than S26 owners do. The reports on Samsung's forums are the same ones that surround the whole S26 line: a phone that shows Charging slowly at about 5 W on a charger that works at full speed on an older Samsung phone, wireless charging that reaches its rated speed only if the phone is placed on the pad before the pad is plugged in, and a moisture warning that appears in a dry port.
For an S26+ the first test is a Samsung 45 W adapter and a 5 A cable, because a lower-rated brick or cable limits the speed, and the lock screen label will tell you at once what rate you are getting.
Differential
Likely causes of “Samsung Galaxy S26+ will not charge or charges slowly”, and how to tell them apart
- 1
An adapter or cable below 45 W and 5 A
What separates it The lock screen shows Charging slowly or a rate far under 45 W
How to confirm Use Samsung's 45 W adapter and a 5 A cable in a wall socket
- 2
A charger the S26 family treats as slow
What separates it About 5 W on a charger that charges an older Samsung phone at full speed
How to confirm Compare with another charger and report it, since owners describe this on S26 phones
- 3
Wireless charging sensitive to order
What separates it About 7 W unless the phone is placed on the pad first
How to confirm Unplug the pad, place the phone, plug the pad in
- 4
A false moisture warning
What separates it The phone reports moisture in a dry port
How to confirm Dry and clean the port and restart
- 5
Heat
What separates it Charging slows when the back is warm
How to confirm Remove the case and charge idle in a cool room
Before you touch a setting
Record this first — changing settings destroys the evidence
- The adapter wattage, the cable rating and whether they charge another phone at full speed
- The label on the lock screen during the first minute
- Whether wireless charging depends on the order of plugging
- The One UI version and patch date
Try in this order
0 of 6 completedRead the label
ReversiblePlug in and read the lock screen message; it says slow, fast or super fast.
Use the 45 W pair
ReversibleSamsung's 45 W adapter and a 5 A cable into a wall socket.
Try the wireless order
ReversibleUnplug the pad, place the phone, plug the pad in.
Clean the port
ReversibleSwitch off and lift lint with a wooden toothpick.
Restart and update
ReversibleRestart and install the newest patch.
Report it
ReversibleSamsung Members, Get help, Error report, with the charger models.
Model-specific
What is true of this model and not of its siblings
- 45 W is the point
- The S26+ is rated 45 W; the base S26 is 25 W. An S26+ that charges like an S26 has a charger or cable limiting it.
- What owners report
- Slow 5 W charging on good chargers and a moisture warning in a dry port.
Stop boundary
When this stops being a self-service repair
- !If two known-good 45 W adapters and 5 A cables leave the S26+ at slow charging, send a Samsung Members error report and book a check
- !If the moisture warning returns in a dry port, ask Samsung to inspect the port
- !A hot or swollen phone must go to service
Evidence ledger
Sources behind this answer
Owners whose S26 charged at about 5 W on chargers that work on other Samsung phones.
Reports of S26 wireless charging not reaching its rated speed.
An S26+ owner's charging thread.
Per-model battery, charging, chip and display for the S26, S26+ and S26 Ultra.
Exact questions
Common questions
How fast does the Galaxy S26+ charge?+
Samsung lists 45 W wired charging for the S26+, against 25 W for the S26.
Why does my S26+ charge at 5 W?+
Owners of the S26 family describe this on chargers that work at full speed on other Samsung phones; use the 45 W adapter and a 5 A cable.
Why is wireless charging slow on the S26+?+
Some owners get full speed only by placing the phone on the pad first.
Why does the S26+ say moisture in a dry port?+
A false detection is reported; dry the port and restart.