Galaxy Z Flip 5 Slow Charging? 7 Fixes That Actually Work (2026 Guide)

If your Galaxy Z Flip 5 is charging slowly, the most common cause is a mismatched charger — Samsung doesn’t include a charger in the box, and plugging into anything less than a 25W USB PD PPS adapter will dramatically slow your charge times. A software bug introduced in One UI 6.1 also caused widespread slow-charging reports across Samsung’s foldable lineup in 2024. Here’s how to diagnose which issue you have and fix it fast.

What’s Normal: Galaxy Z Flip 5 Charging Speed at a Glance

Before troubleshooting, know what to expect. The Z Flip 5 supports up to 25W wired Super Fast Charging — but only with a PPS-enabled charger, which Samsung no longer includes in the box.

Charging Method	Max Speed	0–50% Time	Full Charge
25W wired (USB PD PPS)	25W	~30 minutes	~75–80 minutes
Standard USB-C wall adapter	15W	~50 minutes	~2+ hours
Wireless Fast Charging 2.0	15W	~60 minutes	~100+ minutes
Standard wireless pad	10W	~80 minutes	~2.5 hours
Reverse wireless charging	4.5W	N/A (for accessories only)	N/A

If your Z Flip 5 is taking well over 90 minutes to reach full charge via a plugged-in cable, something is wrong. Start with the fixes below.

Fix 1: Use a 25W USB PD PPS Charger (Most Common Fix)

The Galaxy Z Flip 5 does not ship with a charger. If you’re using a generic 5W or 10W USB adapter — or even an older Samsung 15W adapter — your phone will charge at a fraction of its capable speed. This is the cause of slow charging for the majority of users.

The Z Flip 5 requires a USB Power Delivery (PD) charger with PPS (Programmable Power Supply) support to hit 25W. Standard USB-C chargers that don’t support PPS will top out at 15W or lower.

Recommended chargers verified to hit full 25W on the Z Flip 5:

• Samsung 25W Wall Charger (Official, US Version) — The safest pick; guaranteed compatibility
• Anker 25W USB-C Foldable Charger — Compact form factor with PPS support
• Anker 25W 2-Pack with 5ft Cables — Best value if you need a charger for home and travel

Note: Amazon listings change. Verify the product page confirms “PPS” support before purchasing — not all 25W chargers support PPS, and without it you won’t hit 25W on the Z Flip 5.

Fix 2: Enable Fast Charging in Settings

Fast charging can get accidentally disabled — and when it is, your Z Flip 5 will charge at a noticeably slower rate even with a 25W PPS charger plugged in.

Steps to enable fast charging:

1. Open Settings
2. Tap Battery and device care
3. Tap Battery
4. Tap Charging settings (also called More battery settings on some One UI versions)
5. Make sure Fast charging is toggled On

As of 2026, the Z Flip 5 running One UI 6.1 or later should also show a Super fast charging toggle here — that’s the one you want enabled to reach 25W. Standard “Fast charging” tops out at 15W.

Fix 3: Check for the One UI 6.1 Slow Charging Bug

In early 2024, Samsung’s One UI 6.1 update introduced a well-documented bug that caused charging speeds to drop significantly — some users reported charging at as low as 15W on devices normally capable of 25W+. Samsung’s community forums were flooded with reports from Galaxy Z Fold 5 and Z Flip 5 owners.

How to check if this is your issue:

• If you noticed slow charging starting after a software update, this is likely the cause
• Your phone may feel warm during charging even at lower speeds (heat without speed = throttling)
• The “Charging” notification may just say “Charging” instead of “Super fast charging”

Fixes that resolved the One UI 6.1 slow charging bug:

1. Clear the cache partition — Power off the phone, then hold Power + Volume Down to enter Recovery mode. Use volume buttons to navigate to Wipe cache partition and confirm with the power button. This doesn’t delete your data but clears software residue that can cause charging throttling.
2. Re-enable Super fast charging after updates — Some updates reset the charging settings to default. Go back to Settings > Battery and device care > Battery > Charging settings and re-enable Super fast charging.
3. Submit an error report via Samsung Members — Open the Samsung Members app, go to Get Help > Send Feedback > Error reports. This helps Samsung prioritize a patch and may trigger faster support responses if the issue is widespread.
4. Check for a pending software update — If Samsung released a patch for this bug, it may already be waiting. Go to Settings > Software update > Download and install.

Fix 4: Test in Safe Mode (Rule Out Rogue Apps)

Certain apps — battery optimizers, task killers, and some VPNs — can interfere with charging by keeping the CPU active, generating heat, or directly throttling background performance. Charging in Safe Mode disables all third-party apps and is an easy way to isolate whether an app is the culprit.

How to boot the Galaxy Z Flip 5 into Safe Mode:

1. Power off your phone completely
2. Press and hold the Power button to turn it back on
3. As soon as the Samsung logo appears, press and hold the Volume Down button
4. Keep holding Volume Down until the phone fully boots — “Safe mode” will appear in the bottom-left corner

Test: Plug in your charger in Safe Mode. If it now charges at normal speed, a third-party app is causing the problem. Restart normally and uninstall recently added apps one by one — battery manager apps are the most common culprits.

Fix 5: Clean the USB-C Charging Port

Lint and debris from pockets and bags are a surprisingly common cause of slow or intermittent charging. Even a thin layer of debris in the USB-C port can prevent the plug from seating fully, reducing the charging contact and dropping wattage.

How to safely clean the Galaxy Z Flip 5 charging port:

1. Power off your phone before cleaning
2. Use a can of compressed air — hold it upright and blast short bursts into the port (don’t spray at an angle, which can push debris deeper)
3. If debris is visible, use a wooden toothpick very gently to loosen lint from the port walls — never use metal objects, which can damage the contacts
4. A small piece of rolled tissue paper can absorb moisture if the port shows the “moisture detected” warning after getting damp
5. Never use rubbing alcohol directly in the port — use a cotton swab barely dampened with isopropyl alcohol only if instructed by Samsung support

Warning: The Galaxy Z Flip 5 is rated IP8 for water resistance, but the charging port is still vulnerable to debris buildup. If you regularly keep your phone in jeans pockets, clean the port every few months.

After cleaning, plug in your charger and check if the “Super fast charging” notification now appears.

Fix 6: Inspect Your USB-C Cable

Cables degrade faster than chargers. A USB-C cable with a bent connector, frayed insulation, or damaged internal wiring will drop your charging speed significantly — even if the charger itself is fine.

How to identify a bad cable:

• Check the connector for bent, discolored, or corroded pins
• Look for kinks, fraying, or sharp bends anywhere along the cable’s length — especially near the connectors
• Try a different cable from a known-good source while keeping your charger the same

Important: Not all USB-C cables support fast charging. Cheap “USB-C to USB-C” cables sold for data transfer may be rated for only 3A at 5V (15W), which will prevent the Z Flip 5 from reaching 25W. You need a cable rated for 5A / 100W (often labeled “E-Marker” cable) or at minimum a cable from Samsung or a PPS-certified brand like Anker.

Fix 7: Restart the Phone (Clear Charging Daemon Errors)

Software glitches in Android’s battery management daemon can cause the phone to misread the charger type and default to a lower charging speed. A full restart — not a screen-off sleep — clears the daemon and forces the phone to re-detect your charger at full speed.

Steps:

1. Press and hold the Power button and Volume Down simultaneously for a couple of seconds
2. When the Power menu appears, tap Restart
3. Once the phone fully reboots, plug in your charger
4. Check the lock screen or notification bar — it should now say Super fast charging if using a 25W PPS charger

If it shows “Fast charging” after a restart but used to show “Super fast charging,” this points to the One UI 6.1 bug (see Fix 3) or a cable that doesn’t support PPS.

Still Charging Slowly? Contact Samsung Support

If none of the above fixes resolve the issue, the problem may be hardware — specifically a damaged USB-C board inside the foldable chassis. The Z Flip 5’s compact design makes this board more vulnerable to stress from repeated folding.

How to get hardware support:

• Samsung Support: Call 1-800-726-7864 (US) or visit samsung.com/us/support
• Walk-in service: Use the Find a Service Center tool to locate a Samsung Authorized Service Center near you
• Mail-in repair: Available through Samsung’s website for out-of-warranty repairs
• Warranty: The Galaxy Z Flip 5 launched in July 2023 and carries a standard 1-year manufacturer’s warranty. As of 2026, most Z Flip 5 units are out of the standard warranty window. If you purchased Samsung Care+, that extends coverage for accidental damage

Estimated USB-C port replacement cost (out of warranty): $80–$150 depending on service center. Third-party repair shops may charge less, but using non-Samsung parts can affect water resistance.

Summary: Why Your Galaxy Z Flip 5 Is Charging Slowly

The most likely culprits, in order of frequency:

1. Wrong charger — Not a 25W USB PD PPS adapter (no charger is in the box)
2. Fast charging disabled — Check Settings > Battery and device care > Battery > Charging settings
3. One UI 6.1 software bug — Clear cache partition and check for updates
4. Rogue app — Test in Safe Mode to isolate
5. Dirty charging port — Clean with compressed air
6. Damaged or underpowered cable — Replace with a 5A-rated USB-C cable
7. Hardware failure — Contact Samsung if all else fails

With the right 25W PPS charger and fast charging enabled, your Galaxy Z Flip 5 should hit 50% in under 30 minutes and full charge in about 75–80 minutes. Anything significantly slower than that points to one of the issues above.