UGREEN 30W Charger on a MacBook Air: Measured
UGREEN's foldable 30W charger measured on a MacBook Air M5: 28.4 W delivered, and its full 30 W offered on three separate voltage rails.
UGREEN’s 30W foldable USB-C charger, tested against a MacBook Air M5 with a low battery, per the methodology.
The numbers
| Rated | 30 W |
| Negotiated | 30 W (20 V up to 1.5 A) |
| Live draw | 28.4 W (19.8 V at 1.43 A) |
| Protocol | USB PD 3.0 |
Profile menu:
| Profile | Rail |
|---|---|
| 15 W | 5 V up to 3 A |
| 27 W | 9 V up to 3 A |
| 30 W | 12 V up to 2.5 A |
| 30 W | 15 V up to 2 A |
| 30 W | 20 V up to 1.5 A - active |
No PPS.
Its full rating, three times over
Five profiles, and the last three are all 30 W - at 12 V, 15 V and 20 V. That is the most flexible fixed-profile menu of any charger measured in this series.
Devices don’t all run their internal power conversion most efficiently at the same voltage. A charger that publishes its full rating on several rails lets each device pick whichever suits its converter, instead of forcing a compromise. The Mac takes 20 V.
For comparison, Apple’s 30W adapter offers its rating on two rails, and most 30 W chargers offer it on one. UGREEN adds a 12 V rung on top - a rail that is genuinely uncommon at this size.
There’s no PPS here, so phones that support it won’t get the fine-grained voltage control offered by the Anker Nano 30W. For laptop charging that makes no difference.
Buying one
The UGREEN 30W foldable charger delivers its full rating and offers unusually broad rail coverage for a compact charger.
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