Can you charge a MacBook Air 15″ (M4) with an Apple 5W USB-A?
Worked out from the manufacturers’ specifications. Have a different charger? Pick it below the answer.
The Apple 5W USB-A is a USB-A charger without USB Power Delivery. The MacBook Air 15″ (M4) needs a USB-C PD charger to charge properly.
No time shown: the manufacturer hasn’t published one for this device.
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How long to 50% with each charger
Shorter bar is faster. The highlighted row is the charger on this page.
Want it faster?
Full speed needs 70 W or more. These chargers get there:
MacBook Air 15″ (M4) charging specs
- Fast charging needs
- 70 W
- Max input (approx.)
- 70 W
- In the box
- 35W Dual
- Battery
- 66.5 Wh
- Apple 5W USB-A
- 5 W · USB-A
Sources: Apple: MacBook Air (15-inch, M4, 2025) tech specs · Apple: Fast charge your MacBook Air or MacBook Pro · Apple: About Apple USB power adapters. Checked 2026-10-17.
Quick answers
Is it safe to charge the MacBook Air 15″ (M4) with the Apple 5W USB-A?
Yes, but it is a basic 5V USB-A charger without Power Delivery, so it can only deliver a few watts.
How many watts does the MacBook Air 15″ (M4) need for fast charging?
70 W or more. Fast-charge capable with the 70W USB-C Power Adapter.
How long does the MacBook Air 15″ (M4) take to charge with the Apple 5W USB-A?
It will not charge properly with this charger.