iPhone Charger Not Working? How to Find and Fix the Problem

You plug in your iPhone and expect the charging symbol to appear, but nothing happens. An iPhone charger not working can come down to something as simple as a damaged cable, debris in the charging port or a faulty power adapter. In other cases, temperature or an iPhone charging setting may be responsible.

Start with the easiest checks before replacing anything. Below, we’ll work through the most likely causes, the best order for troubleshooting and what to consider if your charger really does need replacing.

Quick Fix Summary

If your charger is not working on your iPhone, start with these quick checks:

• Try another wall socket.
• Check the cable and adapter for damage.
• Inspect the charging port for debris.
• Restart your iPhone.
• Test with a cable and charger you know work.

If it still will not charge, move on to software, charging settings, or possible hardware issues. Apple recommends checking the power source, charging accessories and port before seeking service.

Why Is Your iPhone Charger Not Working?

iPhone charger issues can start anywhere along the charging chain: the wall socket, adapter, cable, port, software or battery. Looking at each part separately makes it much easier to find the real culprit.

No Power or an Unstable Power Source

A dead wall socket, loose connection, faulty extension lead or unstable USB power source can leave the iPhone connected without receiving usable power. Charging from some computer or hub ports can also be much slower than from a suitable wall adapter.

Damaged or Incompatible Charging Cable

Charging cables can fail internally even when the outer insulation still looks normal. Fraying, bent connectors, exposed wiring, discolouration or charging that cuts in and out can all point to cable damage.

Compatibility can matter too. An unsupported or defective accessory may trigger an “Accessory may not be supported” alert rather than normal charging.

Faulty or Underpowered Power Adapter

The adapter itself can fail even when the cable is working properly. Damage to the casing or plug, loose or bent prongs, internal faults or a failed USB port can prevent it from delivering power reliably.

A charger can also be working but provide too little power for the charging speed you expect. Apple notes that wired chargers providing 7.5W or less can result in slower-than-expected charging.

Debris or Damage in the Charging Port

Pocket lint, dust and other debris can build up inside the Lightning or USB-C port and prevent the connector from seating fully. Common signs include a plug that feels unusually loose, intermittent charging or charging that stops when the cable moves.

Physical damage to the port or its contacts can cause similar symptoms.

Moisture in the Lightning or USB-C Connector

On supported iPhones, liquid detection can deliberately block wired charging when moisture is detected in the connector, cable or accessory.

You may see “Liquid Detected in USB-C Connector”, “Liquid Detected in Lightning Connector” or a similar charging-unavailable message. Charging while the connector is wet can corrode the contacts and cause permanent damage.

Temperature Protection

An iPhone may slow or temporarily pause charging if the battery becomes too hot or is exposed to extreme temperatures. This is built-in battery protection rather than necessarily a charger fault.

Software or Accessory Communication Issue

iOS controls how the iPhone communicates with charging accessories. A software glitch or accessory-detection issue can therefore cause charging problems even when there is no obvious physical damage.

Charging Limit or Optimised Charging

If the battery consistently stops at around 80%, the charger may be working exactly as intended. Optimised Battery Charging can delay charging beyond 80%, while iPhone 15 and later can use a user-selected Charge Limit.

Charging Port, Battery or Internal Hardware Fault

If the external charging accessories are functioning normally, the problem can be inside the iPhone itself. Damage to the charging port, battery, or internal charging hardware can prevent the phone from accepting power.

Step-by-Step Troubleshooting Guide

If your iPhone charger won’t charge, the quickest way to narrow down the cause is to test one thing at a time. Work through these checks in order so you can identify the problem without replacing perfectly good accessories.

1. Check the Wall Outlet and Power Source

Try another device in the same UK wall socket, or move your charger to a socket you already know works. If you are using an extension lead, remove it temporarily and plug the adapter directly into the wall.

Charging from a laptop or hub? Some USB ports provide less power than a wall adapter, which can result in very slow charging and make it seem as though the phone is not charging normally.

2. Inspect and Swap the Charging Cable

Unplug the cable and check both ends for bent contacts, debris, fraying or other visible damage. Then swap in a compatible cable that you know works.

If the replacement cable fixes the problem, you have probably found the cause. If cables keep failing, also look at how they are bent, stored and pulled from the connector during everyday use.

3. Test with a Different Adapter

Keep your known-good cable connected and swap only the USB power adapter. If the iPhone starts charging, the adapter is the likely weak link.

If you need a replacement, At Anker, we offer chargers ranging from compact single-port models for everyday phone charging to multi-port options for laptops and several devices.

4. Inspect and Clean the iPhone Charging Port Safely

Pocket lint can become tightly packed at the back of a charging port, preventing the connector from going all the way in.

So, how to fix charger port on iPhone?

Switch off the iPhone, disconnect the cable and shine a torch or phone flashlight into the port. If you can see lint or loose debris:

• Use a small, clean, dry soft-bristled brush, such as a soft toothbrush, to loosen dust around the inside of the port.
• For compacted lint, a wooden toothpick or another non-conductive plastic pick can be used carefully to lift debris out. Work slowly along the inside edges rather than pushing hard against the contacts.
• Remove loosened debris, inspect the port again under the light and repeat if necessary.

Avoid needles, pins, paper clips or other metal tools, which can scratch contacts or create a short. If the port looks burnt, corroded, physically damaged or the connector still will not seat properly after cleaning, it is better to have the phone inspected rather than keep scraping inside the port.

5. Treat a Liquid-Detection Warning Differently

If your iPhone reports liquid in the connector, disconnect the cable rather than treating the problem as ordinary dirt.

Apple recommends gently tapping the iPhone against your hand with the connector facing down, then leaving it somewhere dry with airflow. You can try reconnecting after at least 30 minutes; if the warning remains, complete drying can take up to 24 hours.

Do not use an external heat source, compressed air or rice, and do not insert anything into the connector while it dries.

6. Restart the iPhone If the Hardware Looks Normal

If the socket, cable, adapter and port all look normal, restart the iPhone to rule out a temporary software or accessory-detection problem.

For iPhone 8 and later, a force restart is:

press and quickly release Volume Up → press and quickly release Volume Down → press and hold the Side button until the Apple logo appears.

7. Update iOS and Check Charging Settings

Once the physical charging setup has been ruled out, open Settings > General > Software Update and install an available iOS update where practical.

Then check Settings > Battery > Charging. If charging stops at 80%, look for Optimised Battery Charging or a Charge Limit before assuming the adapter has failed.

Also pay attention to temperature. If charging pauses while the iPhone is unusually warm, the battery-management system may resume charging automatically once the device returns to a normal temperature.

Why Does My iPhone Stop Charging at 80 Percent?

Stopping at 80% does not necessarily mean your charger is faulty. Optimised Battery Charging may temporarily delay charging beyond 80% when your iPhone expects to stay plugged in for a long time. On iPhone 15 and later, you can also set a Charge Limit between 80% and 100% in 5% increments.

Temperature can be another reason. If the battery becomes too warm, iOS may temporarily limit charging above 80% and resume once the temperature drops. Check Settings > Battery > Charging on supported models before assuming there is a hardware problem.

Recommended Anker Chargers for Reliable iPhone Charging

If you have isolated the problem to the adapter, do not choose a replacement based on wattage alone. The useful things to compare are charging standard, output power, and port layout.

For wired fast charging, Apple recommends a USB Power Delivery-compatible adapter with at least 20W output.

For the latest models, power requirements have moved higher if you want the fastest charging speed. iPhone 17, iPhone 17 Pro and iPhone 17 Pro Max can reach up to 50% in around 20 minutes with a 40W or higher USB-C adapter.

If you only charge your iPhone, a compact single-port charger keeps things simple. If the same socket also needs to power a tablet, laptop or accessories, look through chargers with multiple USB-C ports and check both the maximum single-port output and how power is divided when several ports are used.

Also match the cable to your iPhone: iPhone 15 and later use USB-C, while older models may use Lightning.

Here are three Anker iPhone fast chargers worth considering:

Anker Nano Charger (45W, Smart Display) — Smart Everyday Charging for iPhone

For everyday iPhone charging, the Anker Nano Charger (45W, Smart Display) combines a compact single-port design with a screen that gives you much more visibility into what is happening while your phone charges.

• 45W USB-C PD output: Delivers up to 45W and uses a smart three-stage charging system to adjust power as your device’s needs change.
• Smart iPhone recognition: With supported iPhone 15, 16 and 17 series models, the display can identify the device and show its battery percentage, rather than only showing generic charging information.
• Real-time Smart Display: Shows live charging wattage, temperature and charging status, so you can see whether the iPhone is actively fast charging and how power changes as the battery fills.
• TÜV-certified Care Mode: The thermal-management mode is designed to reduce charging heat, with more than 10 million temperature checks per day supporting real-time thermal control.

It is particularly well suited to iPhone owners who want fast everyday charging with real-time visibility into charging power, battery status and temperature, rather than a basic plug with no feedback.

Anker 715 Charger (Nano II 65W) – One Charger for iPhone and Laptop

If you want one compact adapter for both your iPhone and a USB-C laptop, the Anker 715 Charger steps up to 65W while keeping a simple single-port design.

• 65W single-port output: Suitable for phones, tablets and many USB-C notebooks.
• One USB-C port: Best when you normally charge one device at a time rather than several simultaneously.
• GaN II design: Packs laptop-capable charging into a compact adapter for commuting and travel.

This is the better fit if your iPhone charger also needs to double as your laptop adapter, but you do not need several ports at once.

Anker Charger (100W, 3 Ports, Smart Display) – Best for Multiple Devices

If your iPhone regularly shares a charger with a laptop and other everyday devices, the Anker Charger (100W, 3 Ports) gives you two USB-C ports, one USB-A port and up to 100W total output from one socket.

• Up to 100W from USB-C1 or USB-C2: Enough for higher-powered USB-C laptops when one of the main USB-C ports is used on its own.
• Three-device charging: With all three ports in use, power can be distributed at up to 80W + 12W + 7.5W, keeping the main USB-C device prioritised.
• Smart display: Shows live charging power and temperature information at a glance.
• GaN tech: Combines higher power with a compact design suited to desks, bedside setups, and travel.

Choose this one when multi-device charging matters more than keeping the setup to a single USB-C port.

How to Fix Wireless Charging Problems on iPhone

If wired charging works but wireless charging does not, start with placement and power.

Make sure the wireless charger is connected to a suitable power source, then centre your iPhone on the charging surface. With MagSafe, connect the charger to power before placing the iPhone on it.

Remove thick or incompatible cases and make sure there are no metal objects or other foreign material between the iPhone and charger. If charging remains inconsistent, restart the iPhone and let it cool if it feels unusually warm.

Conclusion

An iPhone charger not working does not always point to a serious fault. Start with the socket, cable, adapter and charging port, then move on to a restart, software update and charging settings if the obvious hardware checks do not solve it.

If the adapter turns out to be the problem, choose a replacement around the setup you actually use: a compact single-port charger for your iPhone, 65W if you also want to cover a laptop, or a multi-port option when several devices share the same socket.

FAQs

Is charging 2 times a day good for an iPhone?

Charging twice a day is not inherently bad for an iPhone. Lithium-ion battery ageing is influenced by charge cycles, temperature and time spent at high states of charge, so the number of times you plug in is only one part of the picture.

Use your phone normally and keep charging optimisation enabled if it suits your routine. Avoiding excessive heat is generally more useful than worrying about a strict daily charging count.

What kills the iPhone battery the most?

All rechargeable batteries gradually lose capacity through chemical ageing, but excessive heat can accelerate the process. Charging habits, charge cycles and how the battery is used and stored can also affect its condition over time.

Rather than worrying about achieving a perfect charging routine, focus on keeping your iPhone away from excessive heat and using compatible charging accessories. Good everyday charging habits can help support battery health over the long term.

Should you leave your iPhone charging all night?

Yes, an iPhone can normally be left connected to a charger overnight. It automatically stops charging when the battery is full, while Optimised Battery Charging can reduce the time it spends at 100% by delaying the final part of the charge until closer to when you normally unplug it.

Heat matters more than simply being plugged in overnight. Keep the phone and charger uncovered and well ventilated, and avoid charging in unusually hot conditions.