The most common reasons your iPhone stops charging

Your iPhone won't charge because of one of four things: the cable or power adapter is damaged, the charging port is blocked or corroded, the battery itself has failed, or a software issue is preventing the phone from recognizing power. Most of the time it is the cable. The second most common culprit is lint or debris packed into the charging port at the bottom of your phone.

Start by testing with a different cable and power adapter if you have one available. If your phone charges with a different cable, you have found the problem — that cable is worn out and needs replacing. If it still will not charge, move to the port inspection in the next section. This process of elimination takes five minutes and will tell you exactly what you are dealing with.

Key Takeaways

  • A damaged charging cable is the most common reason iPhones stop charging, and testing with a different cable takes only a few minutes to confirm.
  • Lint and debris in the charging port block the connection, and you can clear it safely with a wooden toothpick or plastic pick — never metal.
  • If your phone is more than three years old and the battery drains to zero, the battery itself may have reached the end of its lifespan.
  • Force restarting your iPhone can fix charging problems caused by software glitches that prevent the phone from recognizing power.
  • If none of these steps work, your phone likely has a hardware failure that requires service from Apple or an authorized repair shop.

How to inspect and clean the charging port

The charging port sits at the bottom of your iPhone and collects lint, dust, and debris over time. This buildup prevents the charging connector from making a solid connection, even when the cable is fine. You can clean it yourself in about two minutes with tools you probably have at home.

Get a wooden toothpick or a plastic phone cleaning pick — the kind sold in phone accessory packs. Do not use a metal object, which can damage the tiny metal contacts inside the port. Shine a flashlight into the port so you can see what you are working with. Gently scrape the inside walls of the port, working from the sides toward the center. You will likely see lint roll out. Once the port looks clean, plug in your cable and try charging again.

If you see corrosion — a white, green, or blue crusty buildup inside the port — your phone has water damage. This requires professional service because the corrosion can spread to other components. Do not attempt to clean corrosion yourself.

Testing whether the problem is your battery

If your cable is fine and the port is clean, the issue may be the battery itself. iPhones have rechargeable lithium batteries that degrade over time. After about three years of regular charging, most iPhone batteries lose the ability to hold a full charge or accept a charge at all.

Check your battery health by going to Settings, then Battery, then Battery Health & Charging. Look at the Maximum Capacity number. If it is below 80 percent and your phone is more than two years old, the battery is likely the problem. If the Maximum Capacity is very low — below 50 percent — the battery has definitely degraded and needs replacement.

You can replace the battery yourself if you are comfortable opening your phone, but most people take their iPhone to Apple or an authorized repair shop. Apple charges between $69 and $99 for a battery replacement depending on your model. An authorized third-party repair shop may charge less.

Force restarting your iPhone to fix software problems

Sometimes the iPhone's software gets stuck and stops recognizing that power is connected, even though the hardware is fine. A force restart clears this glitch without erasing your data. The steps depend on which iPhone model you have.

For iPhone X and newer: Press and hold the Volume Up button, then press and hold the Volume Down button, then press and hold the Side button until the power-off slider appears. Keep holding the Side button until the screen goes black and the Apple logo appears — this takes about 10 seconds. For iPhone 8 and earlier: Press and hold the Top (or Side) button and the Volume Down button together until the power-off slider appears, then keep holding until the Apple logo shows.

After the restart completes, plug in your cable and wait a few seconds. If the charging symbol appears on the screen, the software glitch was the problem. If nothing happens, move to the next section.

Checking for water damage and physical damage

Water damage is not always obvious. Your iPhone may have gotten wet weeks ago, and the corrosion inside the charging port or battery connector is only now preventing charging. Look for these signs: the Liquid Detection Indicator (a small red or pink dot inside the SIM card tray) is red or pink instead of white, there is visible corrosion in the charging port, or the phone feels damp inside the case.

Physical damage to the charging port — a bent or broken connector, a cracked port opening, or a loose port that moves when you wiggle the cable — also requires professional repair. Do not force a cable into a damaged port, as this can cause more damage.

If you see any of these signs, your phone needs service from Apple or an authorized repair shop. Attempting to charge a water-damaged phone can cause a short circuit and permanent damage to the logic board.

When to take your iPhone to a repair shop

If you have tested with a different cable, cleaned the port, checked the battery health, and force restarted your phone and it still will not charge, the problem is a hardware failure that requires professional service. This could be a failed charging circuit on the logic board, a broken battery connector, or damage to the power management system.

Apple Stores offer mail-in repair if you do not have a store nearby. You can also visit an authorized Apple repair partner — these are listed on Apple's website under "Find Locations." Third-party repair shops often charge less than Apple but may not carry genuine Apple parts. Ask whether they use original parts before you commit.

Bring your phone, your proof of purchase if you have it, and any relevant information about when the charging problem started. Repair times vary from same-day service to one or two weeks depending on the damage and how busy the shop is.

Frequently Asked Questions

Can I use any USB-C cable to charge my iPhone, or does it have to be Apple's?

Any USB-C to USB-C cable that meets the USB standard will charge your iPhone, but Apple's cable is built to higher durability standards. Third-party cables are cheaper and work fine, but they often fail sooner. If you buy a third-party cable, look for one with a thick connector and braided covering — these last longer than thin, flimsy cables.

Why does my iPhone charge slowly even though it turns on?

Slow charging usually means the cable or port is partially damaged or dirty. Clean the port as described above, then test with a different cable. If the phone charges faster with the new cable, the old one is failing. If it still charges slowly, the battery may be degraded, or you may be using a low-power adapter — check that you are using at least a 20-watt power adapter for newer iPhones.

Is it safe to use my iPhone while it is charging?

Yes, it is safe. Modern iPhones have built-in protection that stops charging if the phone gets too hot. If your phone gets very hot while charging, unplug it and let it cool down. Excessive heat during charging can indicate a failing battery or a short circuit in the charging system.

What does it mean if my iPhone charges only when the cable is bent a certain way?

This means the cable or the charging port connector is damaged and making an unreliable connection. Do not keep using it this way — a loose connection can cause overheating and damage the battery or charging circuit. Replace the cable or have the port inspected by a repair shop.

Can I charge my iPhone with a wireless charger if the port is broken?

Yes, if your iPhone model supports wireless charging. iPhones 8 and newer can charge wirelessly. Place your phone on a wireless charging pad and it will charge without using the port. This is a temporary solution while you arrange for port repair, but it works reliably as long as the phone's wireless charging coil is not damaged.