Can you charge a Galaxy S25 with a Google 30W USB-C?
Worked out from the manufacturers’ specifications. Have a different charger? Pick it below the answer.
The Google 30W USB-C meets the Galaxy S25’s top charging speed of about 25 W.
Estimated from the official battery capacity and the power this pair agrees on, with the device idle.
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How long to 50% with each charger
Shorter bar is faster. The highlighted row is the charger on this page.
Galaxy S25 charging specs
- Fast charging needs
- 25 W + PPS
- Max input (approx.)
- 25 W
- Battery
- 4,000 mAh
- Google 30W USB-C
- 30 W · USB-C · PPS
Sources: Samsung: Galaxy S25 | S25+ specs · Samsung: Compare Galaxy S25 series · Belkin: Galaxy S25 charging guide · Samsung: Enable fast charging (PPS requirement) · Google Store (UK): 30W USB-C Power Adapter. Checked 2026-10-17.
Quick answers
Is it safe to charge the Galaxy S25 with the Google 30W USB-C?
Yes. USB Power Delivery negotiates power, so the Galaxy S25 only takes what it can handle and the charger only gives what it can supply. A weaker charger is slower, not dangerous.
How many watts does the Galaxy S25 need for fast charging?
25 W or more, from a USB-C PD charger that supports PPS. Super Fast Charging needs a USB PD charger with PPS.
How long does the Galaxy S25 take to charge with the Google 30W USB-C?
About 22 min to 50% and 1 h 10 min to full, estimated with the device idle.