If your MagSafe cable or power adapter isn't working

Find out what to do if the MagSafe cable or power adapter that came with your Mac notebook computer stops charging or exhibits other behaviours.

Identify your MagSafe cable or adapter

If your Mac uses MagSafe to charge the battery, it will use either a MagSafe 3 connector, MagSafe 2 connector, or a T-style or L-style MagSafe connector. To identify your cable or adapter, use the list below to find your MagSafe connector. 

MagSafe 3 connector
MagSafe 3 connector

MagSafe 2 connector
MagSafe 2 connector

L-style MagSafe connector
L-style MagSafe connector

T-style MagSafe connector
T-style MagSafe connector

If your Mac uses MagSafe 3, you can charge your Mac with a USB-C to MagSafe 3 Cable and a USB-C power adapter.

If your Mac uses MagSafe 2, you can charge your Mac with a MagSafe 2 power adapter or a MagSafe power adapter connected with the MagSafe to MagSafe 2 converter

If your Mac uses MagSafe, you can charge your Mac with a T-style or L-style MagSafe power adapter.

The MagSafe connector and MagSafe port on your Mac notebook contain a magnet that can possibly erase data on a credit card or other magnetic devices. Keep magnetic media away from the end of the MagSafe adapter and away from the MagSafe port.

MagSafe 2 and MagSafe power adapters aren't compatible with MagSafe 3.


Check the power

Find out how to check your plug socket and confirm your adapter wattage. 

Check the plug socket

Make sure you've connected your power adapter to a working plug socket. Unplug your power adapter from the plug socket, then plug in a known-good device, such as a lamp or clock, to confirm it turns on correctly. If the plug socket is working, connect your power adapter to it and try charging your Mac. If your Mac still isn't charging, shut it down and close the display for 30 seconds, then open the display and try charging it again. If you have an Intel-based Mac, reset the SMC.

Confirm the adapter wattage

Make sure the proper wattage power adapter for your notebook computer is being used. For the best charging experience, you should use the power adapter and cable included with your Mac notebook.

Check for line noise issues

Unplug the power adapter from the wall, wait for 60 seconds, then plug the adapter back in.

  • If the adapter works after this 60 second "rest", it's most likely you have a line noise issue with your power source. You should reset the adapter periodically by repeating this moment of rest. This issue occurs when the AC adapter's over-voltage protection feature senses ground noise and then turns off the adapter.
  • Some possible sources of line noise include lights with ballasts, refrigerators or mini-refrigerators that are on the same electrical circuit as your computer. This behaviour may not occur if you plug the power adapter into an uninterruptible power supply (UPS) or plug it into a different circuit.

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

If you see a spark

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


Check the plug, power port and MagSafe connector or cable

Find out how to test the AC plug or cable, inspect the power port and check for damage.

Check the AC plug or cable

Your power adapter comes with a removable AC plug that has the blades for inserting into a plug socket. If your Mac notebook isn't charging when using the AC plug with the power adapter, try using another Apple AC plug or an Apple Power Adapter Extension Cable (sold separately).

If your power adapter works after changing the AC plug or AC cord, the AC plug or AC cord that you were originally using should be replaced and no longer used.

Check the power port for debris

Make sure the power port (where you plug in the MagSafe connector) is clean and free of debris. The port is magnetic and may attract metal objects.

If the indicator light flashes

If your battery is charging or charging is on hold, the indicator light will glow amber. If the indicator light on the MagSafe 3 connector flashes amber repeatedly, try these steps:

  1. Disconnect the USB-C to MagSafe 3 Cable from your Mac and from the power adapter.
  2. Disconnect the USB-C power adapter from the plug socket.
  3. Use a dry cloth to wipe the MagSafe 3 port and MagSafe 3 connector. Make sure both the port and connector are dry and clear of any debris.
  4. Make sure the USB-C port on the power adapter and the USB-C connector are clear of any debris.
  5. Restart your Mac.
  6. Connect the USB-C power adapter to the wall socket, connect the USB-C to MagSafe 3 Cable to the power adapter and to your Mac, then try charging again.

If the indicator light continues to flash repeatedly, contact Apple.

Check for strain relief (MagSafe 2 or earlier)

If your DC cable (the thin cord that attaches the MagSafe 2 or MagSafe connector to the power adapter) separates at either end of the cable, stop using the cable immediately and get your cable and power supply evaluated.


If the adapter starts getting warm

The power adapter can become warm during normal use, so make sure you use it in a well-ventilated area. Always plug the power adapter directly into a plug socket using the AC plug, or place it on a table or other well-ventilated area.

Avoid placing your adapter in a poorly ventilated area, such as on a sofa, thick carpet, bedding or a pillow. Avoid covering the adapter with a blanket or other insulation.

The power adapter may turn itself off if it gets too warm. If this happens, disconnect the MagSafe connector from your Mac notebook, then let the power adapter cool down before handling it.


Check for updates

In some cases, software or firmware updates may be available for your computer that will improve communication with your power adapter. If your MacBook, MacBook Air or MacBook Pro isn't charging as expected, check for software updates on your Mac.


Arrange a service or purchase a new cable or adapter

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