Strain relief: Strain relief refers to the head of the charger, which plugs into the MacBook, slowly disconnecting from the main cable.

Physical damage can cause electrical fires, so stop using your charger and get a replacement immediately. If a prong or blade is loose or missing, your MacBook won’t receive enough power, if any at all. Prong and blade damage: Examine all prongs, blades, and other metal tips used by your charger. Check for physical damageĪ common cause of charger failure is physical damage. You can also use a quick spritz of isopropyl alcohol on the connector, but make sure to dry the charger thoroughly before using it again. To clean, get a cloth or cotton swab and remove any dirt you see. Also, beware of invisible, sticky layers that may be the real problem. A layer of dust or grime may be present, preventing the charger from making a proper electrical connection. Here are the five major connection types: Clean it outĪfter confirming that the charger is your issue, check for dirt in all ports and connectors. If you bought a charger or a used or refurbished Mac online and your charger doesn’t work upon first use, make sure you have a compatible charger type.Īpple has more information about the different power adapter connectors that work with old and new MacBooks and how you can get the correct adapter, if necessary.

While you can acquire power adapters that output higher power than what your MacBook requires, using an adapter that doesn’t deliver enough power can lead to performance issues. The evolution of Apple’s MacBook lineup over the years introduced a handful of different power connectors and wattages. This is also the perfect time to check compatibility. If your MacBook still fails to respond, you probably have a problem with the battery or other hardware, and it’s time to take a different approach.

If your MacBook turns on and starts charging with a different cable, your charger is likely the culprit. You can also head to an Apple Store or an Apple Authorized Service Provider and ask if you can test your unit. If you get no response, consider borrowing an identical charger (if possible).

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