What is the purpose need of the adapter shown between the wall outlet and the laptop computer?

A power supply for electronic devices. Also called an “AC adapter” or “charger,” power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop.

Why does my Mac say power source power adapter?

It means that the unit has fully charged the battery, and is running directly off the A/C adapter.

Why does Mac charger have hooks?

They are used when you need to travel and provide a safe place to coil the magsafe cord. Particularly useful if you travel without the power cord attached and the pins coming directly out of the brick.

Why do laptop chargers have a box?

Your laptop and its battery can’t use the full amount of electricity provided by a regular household or office outlet, which produces 120 volts of alternating current. Inside the adapter’s “line lump,” a stepdown transformer reduces the strength of the current to a level the system can use.

Should you always keep your Mac plugged in?

Yes, in fact if you want to preserve your battery’s life as much as possible, you should leave it plugged in as much as possible. Your MacBook Pro has circuitry to protect the battery from over or undercharging. So you never have to worry about leaving it plugged in too much, or even leaving it unplugged too long.

Why won’t my MacBook Pro charge with the power adapter?

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). Your Mac notebook comes with a USB-C cable that charges the computer.

What happens if I use a different power adapter for Mac?

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.

Which power adapter and cable come with my Mac notebook computer?

Mac notebook computers come 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.

Can I use a higher watt USB-C cable for charging a Mac?

If you use a higher wattage USB-C cable, your Mac will still charge normally. 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 61W, such as the 96W USB-C Power Adapter.