If your USB-C power adapter isn't charging your Mac notebook
Learn what to do if the USB-C power adapter that came with your Mac notebook computer stops charging, gets warm, or sparks.
Mac notebook computerscome with a USB-C power adapter and charge cable. You can learn which power adapter and cable come with your Mac notebook computer, and find troubleshooting tips below.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 notebook instead.
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Learn how to check your power outlet and AC plug.
Check 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 or clock 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.
Check for line noise issues
Unplug the power adapter from the wall, wait 30 seconds, then plug the adapter back in:
- If your Mac notebook 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 anApple Authorized Service Provider or Apple Storefor further evaluation.
Check the AC plug or cable
Your power adapter comes with a removable AC plug that has the blades you insert into an electrical outlet.If your Mac notebook doesn't charge when using the AC plug with the power adapter, try it with another Apple AC plug, or try using an Apple Power Adapter Extension Cable [sold separately].
get your cable and power supply evaluated.
If your Mac notebook begins charging only when you wiggle or move the USB-C cable or Apple Power Adapter Extension Cable [sold separately], immediately stop using the cable andget your cable and power supply evaluated.
check for software updates on your Mac.
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 notebook, then let the power adapter cool down before handling it.
contact Apple:
- Contact Apple if a spark comes from somewhere other than the blades of the plug.
- Contact Apple if you see any damage or discoloration on the adapter.
Apple Authorized Service Provider or Apple Store for evaluation.Be sure to bring your Mac, your USB-C power adapter, and any USB-C cables you use for charging.
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