4 Things to Know About Fast Charging the M2 and M3 MacBook Air
Only M2 and M3 models support fast charging The M1 MacBook Air cannot fast charge regardless of the adapter or cable you use.
You need a 67W or 70W USB-C power adapter Apple’s 67W or 70W adapter with a MagSafe 3 cable charges from 0 to 50% in about 30 minutes. The 30W or 35W adapters charge at normal speed.
MagSafe is preferred over USB-C MagSafe is more convenient and prevents wear on the USB-C port. If you use USB-C, the cable must support USB Power Delivery—Apple’s included cable works.
The 67W adapter is the only one worth buying for speed Don’t overthink it: get the 67W adapter if you care about fast charging. Anything smaller will charge your MacBook Air slower.