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Apple has power adapters with a variety of connectors. Identify your adapter from the examples below before troubleshooting further.
|Barrel-type connector||'T' style MagSafe connector||'L' style MagSafe connectors||MagSafe 2 connector|
Follow these steps to identify the cause of the issue and find out which solutions are available.
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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.
Verify that the power outlet you're using is working correctly. Plug in a known good appliance, such as a lamp, TV, or clock, and confirm it powers on properly.
Select the appropriate power adapter for your Apple portable computer. You can use a higher wattage power adapter, but you cannot use one with less wattage without potential operating issues.
Unplug the power adapter from the wall, let it sit for 60 seconds, then plug the adapter back in.
The power adapter may become very warm during normal use as heat generated during operating radiates from the adapter's casing. Always put the power adapter directly into a power outlet or place it on the floor in a well-ventilated location. If you are using your MagSafe adapter in a poorly ventilated area such as on a couch, in thick carpeting, on bedding, or a pillow, or if the MagSafe adapter is covered by a blanket or other form of insulation, it may turn itself off in order to prevent damage to the adapter. The adapter may still be quite warm in this state and should be allowed to cool before handling.
If you're using the AC plug (also known as a 'duck head') with the power adapter, swap it out for the included two- or three-pronged AC cord, or if you are using the two- or three-pronged AC cord swap it out with the AC plug. Either connector can be easily connected the adapter as shown below.
Follow these tips for best performance of your AC plug or three-prong cable:
If you notice any of the following, discontinue use of the AC plug or three prong cable:
Strain relief is a condition where the DC cable (the thin cord that attaches the MagSafe connector to the power adapter) separates from the end of the MagSafe connector or from the other end of the thin cord, at the power adapter. Under continued use, the cable may discolor and the rubber molding may become deformed. Another indication of possible strain relief that is not always visible to the eye is intermittent electrical connectivity. You can often verify this condition by wiggling the cable back and forth near the MagSafe connector and observing whether the LED indicator (which turns amber or green) flashes on or off depending on the position of the cord.
Example of strain relief on a 'T' style MagSafe adapter.
For more information about reducing strain relief issues, see the following articles:
You should not use power adapters that have strain relief damage or that are missing insulation or rubber. Do not attempt to repair an adapter cable in this state.
Sometimes you may discover that the MagSafe adapter for your computer is not working properly because the pins inside the MagSafe connector are stuck.
For example, the pins on the connector of the MagSafe adapter shown below are stuck down.
Example of ground pins on adapter sticking. This may cause the adapter to be seen but it may not charge.
Example of the sense pin on adapter sticking. This may cause the adapter to charge but not be seen and may cause the LED on the adapter to stay dark.
If you think that a pin is stuck down, try unplugging and re-plugging the MagSafe adapter into the power port. The pins should move and reset themselves to a neutral position. If you find that a pin isn't resetting itself, gently press the pin sideways using a fingertip or other soft, non-scratching surface to see if the pin will reset itself. If the pin will not reset, please refer to the Learn more section at the bottom of this article.
Be sure to regularly inspect and clean both the MagSafe adapter connector and the power port on your Apple portable computer for dirt or signs of damage.
Example of a MagSafe connector on an Apple computer that requires cleaning to remove debris.
To clean the MagSafe port on your Mac Notebook, disconnect the adapter from the wall outlet. Remove debris gently with a cotton swab or a soft bristle toothbrush. Be careful not to get any cotton fibers stuck in the MagSafe in port. Note: Remove the battery from the computer if you are using a Mac Notebook with a removable battery.
To clean the MagSafe connector and pin area, disconnect the adapter from the wall outlet and from the computer. Remove debris gently with a cotton swab or a soft bristle toothbrush. Be careful not to get any cotton fibers stuck in the pin receptacle and to not bend or otherwise damage any of the pins.
In some cases, operating system or firmware updates may be available for your computer which improve communication with your power adapter. To check for software updates, go to the Apple () menu and choose the option for Software Update. This will search for updates for your computer which you can review and install.
After following the steps above, see if the computer is charging and the LED is lit. If not, please refer to the Learn more section below.
Whether or not your product is in or out of warranty, you can take your adapter to an Apple Authorized Service Provider or Apple Retail Store for evaluation and replacement if necessary. Pending the results of the evaluation, you may or may not be eligible for a replacement adapter free of charge. Signs of accidental damage would negate any coverage. Be sure to bring in the computer used with the adapter; it is required to process potential adapter replacements.
Power adapters for Mac notebooks are available in 29W, 30W, 45W, 60W, 61W, 85W, 87W, and 96W varieties. You should use the appropriate wattage power adapter for your Mac notebook. You can use a compatible higher wattage power adapter without issue, but it won't make your computer charge faster or operate differently. If you use a power adapter that is lower in wattage than the adapter that came with your Mac, it won't provide enough power to your computer.
Mac notebooks that charge via USB-C come with an Apple USB-C Power Adapter with detachable AC plug (or 'duckhead'), and a USB-C Charge Cable.
Mac notebooks that charge via MagSafe come with an AC adapter with MagSafe connector and detachable AC plug, and an AC cable.
The images below show the style of adapter that comes with each MacBook, MacBook Pro, and MacBook Air. If you're not sure which model Mac you have, use these articles:
Apple 29W or 30W USB-C Power Adapter and USB-C Charge Cable
Apple 30W USB-C Power Adapter and USB-C Charge Cable
Apple 61W USB-C Power Adapter and USB-C Charge Cable
Apple 87W USB-C Power Adapter and USB-C Charge Cable
Apple 96W USB-C Power Adapter and USB-C Charge Cable
For the best charging experience, you should use the USB-C charge cable that comes with your Mac notebook. If you use a higher wattage USB-C cable, your Mac will charge normally but you won't see an increase in charging speed. USB-C cables rated for 29W or 30W will work with any USB-C power adapter, but won't provide enough power when connected to a power adapter that is more than 30W, such as the 61W USB-C Power Adapter.
You can verify that you're using the correct version of the Apple USB-C Charge Cable with your Mac notebook and its USB-C AC Adapter. The cable's serial number is printed on its external housing, next to the words 'Designed by Apple in California. Assembled in China.'
85W MagSafe power adapter with MagSafe 2 style connector
60W MagSafe power adapter with MagSafe 2 style connector
45W MagSafe power adapter with MagSafe 2 style connector
If you have an older MagSafe adapter, you can use it with newer Mac computers that have MagSafe 2 ports using a MagSafe to MagSafe 2 Converter (shown).
60W MagSafe power adapter with 'T' style connector
60W MagSafe power adapter with 'L' style connector
85W MagSafe power adapter with 'T' style connector
85W MagSafe power adapter with 'L' style connector
45W MagSafe power adapter with 'L' style connector
* Adapters that shipped with the MacBook Air (Original), MacBook Air (Late 2008), and MacBook Air (Mid 2009) are not recommended for use with MacBook Air (Late 2010) models. When possible, use your computer's original adapter or a newer adapter.
You can get extra or replacement adapters with AC cord and plug at the Apple Online Store, an Apple Reseller, or an Apple Store.
A replacement adapter might not be the same size, color, shape, or wattage as the original adapter that came with your computer. But it should power and charge your Mac like the adapter that originally came with your computer.
If you need help using your MagSafe adapter, see Apple Portables: Troubleshooting power adapters.
If you're looking for a PowerPC-based power adapter, see PowerPC-based Apple Portables: Identifying the right power adapter and power cord.