Power adapters for Mac notebooks are accessible in 29W, 30W, 45W, 60W, 61W, 85W, 87W, and 96W assortments. You ought to utilize a suitable wattage power adapter for your Mac notebook. You will be able to utilize a congruous higher wattage control adapter without issue, but it won't make your computer charge faster or work in an unexpected way. If you employ a control adapter that's lower in wattage than the connector that came together with your Mac, it won't give sufficient control to your computer. Mac notebooks that charge by means of USB-C come with an Apple USB-C Control Connector with separable AC plug (or "duckhead"), and a USB-C Charge Cable. Mac notebooks that charge by means of MagSafe come with an AC connector with a MagSafe connector and separable AC plug, and an AC cable.

Types of cables and Adapters and their Models

1. USB-C

This 2-meter charge cable — with USB-C connectors on both ends — is ideal for charging, syncing, and transferring data between USB-C devices. Pair the USB-C Charge Cable with a compatible USB-C power adapter to conveniently charge your devices from a wall outlet and take advantage of fast-charging capabilities. USB-C Power Adapters sold separately.

1. Apple 29W or 30W USB-C Power Adapter and USB-C Charge Cable
2. MacBook models introduced in 2015 or later
3. Apple 30W USB-C Power Adapter and USB-C Charge Cable
4. MacBook Air models introduced in 2018 or later
5. Apple 61W USB-C Power Adapter and USB-C Charge Cable
6. 13-inch MacBook Pro models introduced in 2016 or later
7. Apple 87W USB-C Power Adapter and USB-C Charge Cable
8. 15-inch MacBook Pro models introduced in 2016 or later
9. Apple 96W USB-C Power Adapter and USB-C Charge Cable
10. 16-inch MacBook Pro models introduced in 2019Apple recommends the following pairings:
11. 12-inch MacBook with USB‑C port with the 30W USB‑C Power Adapter
12. 13-inch MacBook Air with Thunderbolt 3 (USB-C) ports with the 30W USB-C Power Adapter
13. 13-inch MacBook Pro with Thunderbolt 3 (USB-C) ports with the 61W USB-C Power Adapter
14. 15-inch MacBook Pro with Thunderbolt 3 (USB-C) ports with the 87W USB-C Power Adapter
15. 16-inch MacBook Pro with Thunderbolt 3 (USB-C) ports with the 96W USB-C Power Adapter
16. 11-inch iPad Pro (1st and 2nd generation) and 12.9-inch iPad Pro (3rd and 4th generation) with the 20W USB-C Power Adapter
17. iPad Air (4th generation) with the 20W USB-C Power Adapter

Make sure you're using the correct 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 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.

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."

1. If the first three characters of the serial number are C4M or FL4, the cable is for use with an Apple USB-C Power Adapter up to 61W.
2. If the first three characters of the serial number are DLC, CTC, FTL, or G0J, the cable is for use with an Apple USB-C Power Adapter up to 100W.
3. If the cable says "Designed by Apple in California. Assembled in China" but has no serial number, you might be eligible for a replacement USB-C charge cable.

2. MagSafe 2
3. 85W MagSafe power adapter with MagSafe 2 style connector
4. 15-inch MacBook Pro models introduced in 2012 through 2015
5. 60W MagSafe power adapter with MagSafe 2 style connector
6. 13-inch MacBook Pro models introduced in 2012 through 2015
7. 45W MagSafe power adapter with MagSafe 2 style connector
8. MacBook Air models introduced in 2012 through 2017
9. About the MagSafe to MagSafe 2 Converter
10. 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

3. MagSafe "L" and "T" shaped adapters

The Apple 20W USB‑C Power Adapter offers fast, efficient charging at home, in the office, or on the go. While the power adapter is compatible with any USB‑C-enabled device, Apple recommends pairing it with the iPad Pro and iPad Air for optimal charging performance. You can also pair it with iPhone 8 or later to take advantage of the fast-charging feature.

The T shaped adapter is  compact and convenient USB-based power adapter and can be used to charge your iPhone, iPad, or iPod with Lightning connector at home, on the road, or whenever it's not connected to a computer. You can connect the adapter directly to your device via the Lightning connector.

1. 60W MagSafe power adapter with "T" style connector
2. 13-inch MacBook Pro models introduced in 2009
3. MacBook models introduced in 2006 through mid 2009
4. 60W MagSafe power adapter with "L" style connector
5. 13-inch MacBook Pro models introduced in 2010 through 2012
6. MacBook models introduced in late 2009 through 2010
7. 85W MagSafe power adapter with "T" style connector
8. 15-inch MacBook Pro models introduced in 2006 through 2009
9. 17-inch MacBook Pro models introduced in 2006 through 2009
10. 85W MagSafe power adapter with "L" style connector
11. 15-inch MacBook Pro models introduced in 2010 through 2012
12. 17-inch MacBook Pro models introduced in 2010 through 2011
13. 45W MagSafe power adapter with "L" style connector
14. 13-inch MacBook Air models introduced in 2008 through 2011*
15. 11-inch MacBook Air models introduced in 2010 through 2011
16. * 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.