If your USB-C power adapter isn't charging your Mac laptop

Learn what to do if the USB-C power adapter that came with your Mac laptop computer stops charging, gets warm, or sparks.

Mac laptop computers come with a USB-C power adapter and charge cable. If you're having an issue with a non-Apple power adapter, try using the Apple power adapter and cable that came with your Mac laptop instead.

If your Mac came with a USB-C to MagSafe 3 cable, learn what to do if your MagSafe cable or power adapter isn't working.

USB-C Power Adapter

USB-C power adapter

Top view of AC plug showing electrical prongs extended

AC plug, or "duckhead"

Top view of USB-C to USB-C charging cable

USB-C charging cable

Check power

If your power adapter isn't charging your Mac laptop, unplug the power adapter from the power outlet, wait a few seconds, then plug it back in. If that doesn't help, try these tips.

Restart your Mac

Choose Apple menu  > Restart, then click Restart.

Test the power outlet

Make sure that you've connected your USB-C power adapter to a working power outlet. Unplug your USB-C power adapter from the power outlet, then plug in a known good device, such as a lamp to confirm it powers on properly. If the power outlet works, connect your USB-C power adapter and try to charge your Mac. If your Mac still won't charge, shut down your Mac and close the display for 30 seconds, then open the display and try to charge your Mac again. If you're not using a Mac with Apple silicon, reset the SMC.

Look for sparks, discoloration, or damage

Sometimes when you plug the power adapter into the wall, you may see a spark. This is usually normal and can occur when you plug any electrical appliance into a live outlet. If the spark comes from somewhere other than the blades of the plug, if you experience any damage or discoloration of the adapter, or if you have other concerns about sparking, contact Apple.

Check for line noise issues

Unplug the power adapter from the wall, wait 30 seconds, then plug the adapter back in:

  • If your Mac laptop starts charging after you plug the power adapter back in, this might indicate an issue with line noise (disruption caused by stray electromagnetic signals) from your power outlet. The power adapter automatically shuts off when its built-in voltage protection feature senses line noise from an outlet.

  • Some possible sources of line noise include lights with ballasts, refrigerators, or mini-refrigerators that are on the same electrical circuit as the outlet you're using. Plugging the power adapter into an uninterruptible power supply (UPS) or an outlet that's on a different circuit can help.

If your power adapter continues to turn itself off when connected to a known good outlet, take your adapter to an Apple Authorized Service Provider or Apple Store for further evaluation.

Check the plug, USB-C cable, and USB-C ports

Learn how to check the AC plug, USB-C cable, and USB-C ports.

Try another AC plug

Your power adapter comes with a removable AC plug that has the blades you insert into an electrical outlet. If your Mac laptop doesn't charge when using the AC plug (duckhead) with the power adapter, try it with another Apple AC plug, or try using an Apple Power Adapter Extension Cable (sold separately).

Check the USB-C cable

Your Mac laptop comes with a USB-C cable that charges the computer. You can find out if this cable is causing your charging issue by trying another USB-C cable. Some USB-C cables only support data transfer and won't charge your Mac, so make sure the cable you try supports charging.

If your Mac laptop charges with a different USB-C cable or only charges when you wiggle or move the USB-C cable, stop using the cable that doesn't work and get your cable and power supply evaluated.

Inspect the USB-C ports for debris

Make sure that the USB-C ports on your Mac are clean and free of debris. If necessary, blow compressed air into the USB-C ports.

Check for updates

In some cases, software or firmware updates might be available for your computer that improve communication with your power adapter. If your Mac starts up, check for software updates on your Mac.

If the adapter gets warm

The USB-C power adapter can become warm during normal use, so be sure to use it in a well ventilated area. Always plug the power adapter directly into a power outlet using the AC plug, or place it on a table or other well ventilated area when using the Power Adapter Extension Cable (sold separately).

Avoid placing your adapter in a poorly ventilated area, like on a couch, thick carpeting, bedding, or a pillow. Avoid covering the adapter with a blanket or other insulation.

The power adapter might turn itself off if it gets too warm. If this happens, disconnect the USB-C cable from your Mac laptop, then let the power adapter cool down before handling it.

Set up service or purchase a new cable or adapter

If your Mac laptop is still not charging, you can bring it to an Apple Store or Apple Authorized Service Provider for evaluation. Make sure to bring your Mac, your USB-C power adapter, and any USB-C cables you use for charging.

If you want to purchase a replacement, choose your cable or power adapter below:

Although you can use any USB-C power adapter with your Mac laptop, you should use a USB-C power adapter with equal or greater wattage (W) than the power adapter that came with your Mac. If you're not sure which power adapter came with your Mac, learn how to identify your Mac power adapter.

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