Why is my iPhone 6 charging slowly?

iPhone or iPod touch cannot be charged

If your battery does not charge, charges slowly, or displays a warning, learn what to do.

Connect to electricity

If you want to charge an iPhone 8 or later wirelessly, first check whether the charging works with the supplied USB adapter and the corresponding cable. If this works, you can get help on wireless charging here. For third-party accessories, check to see if they're Apple certified.

To charge your device, do the following:

  1. Connect the included USB cable to your device.
  2. Connect it to one of these three power sources:

Wall socket

Connect the USB charging cable to a USB power adapter and plug it into a power outlet.


Plug the charging cable into a USB 2.0 or USB 3.0 port on a computer that is turned on and not in sleep mode. Do not use the USB ports on the keyboard.

Power supply accessories

Connect the cable to a powered USB hub, docking station, or other Apple-certified accessory.

While your device is charging, you will see a lightning bolt in the battery icon in the status bar or a large battery icon on the lock screen.

The device charges slowly or does not charge at all

Do the following, and after each step check to see if the problem has been resolved:

  1. Check the charging cable and USB power adapter for signs of damage, such as breaks or bent pins. * Do not use damaged accessories.
  2. Make sure that the charging cable and USB power adapter are securely connected and that the power adapter is properly plugged into the wall socket or properly connected to the AC power cord. If in doubt, use a different outlet.
  3. Remove any foreign objects from the charging port on the bottom of the device, then insert the charging cable securely. If the charging port is damaged, the device may need to be repaired.
  4. Let the device charge for half an hour. (If the device doesn't respond afterward, here's how to do it.)
  5. Force restart your device:
    • iPhone 8 or later and iPhone SE (2nd generation): Press the volume up button and release it immediately. Press the volume down button and release it immediately. Press and hold the side button until you see the Apple logo.
    • iPhone 7, iPhone 7 Plus, and iPod touch (7th generation): Press and hold the top button or side button and the volume down button at the same time until you see the Apple logo.
    • iPhone 6s or earlier, iPhone SE (1st generation), and iPod touch (6th generation) or earlier: Press and hold the side button (or the top button) and the home button at the same time until you see the Apple logo.
  6. Let the device charge for another half an hour.
  7. If the device still does not turn on or charge, take the device, charging cable, and charging adapter to an Apple Store or Apple Authorized Service Provider for assessment. You can also contact Apple Support.

* If you're not sure whether an accessory is damaged, take it to an Apple Store or Apple Authorized Service Provider for inspection, or contact Apple Support.

The device stops charging at 80 percent

The iPhone can get a little warmer while charging. If the battery gets too warm, the software can limit charging to 80 percent to extend battery life. The iPhone will continue charging as soon as the temperature has dropped. If possible, move your iPhone and charger to a cooler location.

iOS 13 uses the Optimized Battery Charging feature to slow down battery aging by reducing the time your iPhone is fully charged. Your iPhone uses machine learning on the device to understand your daily charging routine, so it can wait until you have to use your iPhone to finish charging past 80 percent. * This charging strategy reduces battery wear and tear and improves battery life. Optimized charging is only activated when the iPhone predicts that it will be connected to a charger for an extended period of time.

* Information about your charging routine is only saved on your iPhone. They are not backed up or sent to Apple.

According to the warning, the accessory is not supported or is not certified

These warnings might appear for the following reasons: The charging port on your iOS device might be dirty or damaged, the accessories used to charge might be defective or not Apple-certified, or the USB device you are using is not designed to charge devices :

  1. Remove foreign objects from the charging port on the bottom of the device.
  2. Restart the device:
  3. Try a different USB cable or charger.
  4. Make sure you have the latest version of iOS.
  5. Contact Apple Support to schedule a service appointment.

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