Galaxy S24 Charging Problems: How To Fix Them (2026)

Your Galaxy S24 will not charge, charges slowly, or keeps showing a moisture warning.

Most of these cases come from the cable, the charger, a dirty port or a charging setting, not a dead phone.

This guide goes from the quickest checks to the last resorts and takes about 15 minutes, as of 2026.

Quick answer: what to try first

Symptom	Likely cause	Try this first
Charges very slowly	Weak charger or cable	Use a 25W (S24) or 45W (S24+, Ultra) USB-C charger
Not charging at all	Lint in the port	Power off and inspect the port with a flashlight
Water drop icon or alarm	Moisture detected	Unplug, shake gently, wait 1 to 2 hours
Stops at a set percentage	Battery protection	Settings, Battery, Battery protection
Frozen or unresponsive	Software glitch	Force restart

1. 1. Reseat cable
2. 2. Swap charger and cable
3. 3. Clean port
4. 4. Check settings
5. 5. Restart and update

Is your S24 charging slowly or not charging at all?

The two problems have different usual causes, so start with the one that matches your phone.

What you see	Most likely causes	Go to
Charging slowly	Wrong charger or cable, battery protection, heat, weak power source	Fixes 1, 3, power source and heat
Not charging at all	Dirty port, moisture warning, faulty cable, software glitch	Fixes 2 and 4, moisture and cable test
Charges only on wireless	Damaged USB-C port	Service section

To confirm fast charging is active, look for a Super Fast Charging label on the lock screen while plugged in.

What charging speed should the S24 get?

Model	Wired charging	Wireless charging	Charger in box
Galaxy S24	25W	15W Qi	No
Galaxy S24+	45W	15W Qi	No
Galaxy S24 Ultra	45W	15W Qi	No

Samsung ships no charger with any of these, so slow charging often means an old charger.

The S24+ and Ultra do not hold 45W for the whole charge, so a full charge takes roughly an hour at best.

Fix 1: swap the cable and charger

A regular charger cannot fast charge the phone.

• 25W (S24): use a 25W USB-C adapter, ideally with a 5A-rated USB-C cable.
• 45W (S24+ and Ultra): use a 45W USB-C adapter and a 5A-rated cable, because a 3A cable will not work well.

Unplug the cable, plug it back in firmly, then test with a second charger and cable.

Also try: a different power source

Samsung says to try another compatible charger and cable, so test with a different wall outlet too.

• Wall outlet: the best choice for fast charging.
• Computer USB ports, car ports, and smart plugs: these often cannot supply enough steady power for fast charging.
• USB-A cables and worn cables: these can limit power, so use a good USB-C to USB-C cable.

If another cable and charger do not help, the phone itself is more likely at fault.

Fix 2: clean the charging port

1. Power off the phone.
2. Look into the port with a flashlight.
3. Remove visible debris gently, without metal objects or liquids.

Fix 3: check fast charging and battery protection

1. Open Settings → Battery → Charging settings and turn on Fast charging and Fast wireless charging.
2. Open Settings → Battery → Battery protection and pick a different option or turn it off.

Battery protection can stop charging early, which looks like a fault but is a setting.

Fast charging may also not work when the phone is plugged into a PC or a standard USB port.

Why does my S24 say moisture detected?

The phone blocks charging when it senses moisture in the port, so do not force it.

1. Unplug the charger.
2. Shake the phone gently to clear water from the port.
3. Wait about 1 to 2 hours for it to dry.
4. Use wireless charging in the meantime, once the phone is dry.
5. Contact Samsung Support if the warning keeps coming back.

Never charge a wet phone or put any object into the port.

Let a hot phone cool down

High temperature pauses or slows charging.

Take the phone out of its case, stop gaming or streaming, and let it cool before you try again.

Why is wireless charging slow?

The S24 family tops out at 15W wirelessly, so a basic 5W or 10W Qi pad will be slower.

• Alignment: center the phone on the pad.
• Thick cases: remove them, because they reduce efficiency and add heat.
• Fast wireless charging: confirm it is on in Settings → Battery → Charging settings.

For other wireless problems, see Samsung Galaxy wireless charging not working.

Fix 4: force restart and update

1. Press and hold Power and Volume down together for more than 7 seconds.
2. Keep holding until the phone restarts.
3. Open Settings → Software update and install any waiting update.

Charge the phone a little first, since a restart on a dead battery will not help.

Fix 5: rule out an app with Safe mode

Safe mode stops third-party apps from running, so it helps you check whether an app is interfering.

1. Turn the phone off completely.
2. Turn it on, and when the Samsung logo appears, press and hold Volume down.
3. Look for Safe mode in the bottom-left corner.
4. Plug in your charger and watch the charging speed.

If charging behaves normally here, a downloaded app is the likely cause, so uninstall recent apps one at a time.

To leave Safe mode, restart the phone, or tap the Safe mode is on notification and choose Turn off.

Run Samsung’s cable charging test

1. Open the Samsung Members app and tap Support.
2. Tap Get Started and run the full diagnostics.
3. Stop the test and choose Cable charging.

Last resorts: factory reset and service

Try a factory reset only after you have ruled out the cable, charger and port.

Back up your data first, then use Settings → General management → Reset → Factory data reset.

If wired charging still fails but wireless works, the port is the likely fault, so visit a Samsung service center.

Replacement chargers and cables

If a different charger fixes it, buy a USB-C charger that matches your model’s wattage and a 5A-rated cable.

Buy links go to Amazon, and TheDroidGuy may earn a commission from them. Check each listing before you buy.

Check price on Amazon: 45W chargers Check price on Amazon: USB-C cables

Related fixes

• Samsung Galaxy wireless charging not working
• Galaxy S24 battery drain after an update

Official references: Samsung fast charging troubleshooting, Samsung moisture in charging port and Samsung force reboot.