Can you charge a Galaxy S26 Ultra with a Samsung 45W Super Fast 2.0?

Worked out from the manufacturers’ specifications. Have a different charger? Pick it below the answer.

Answer
Yes, standard speed

It charges at normal speed. Fast charging needs 60 W or more.

Power delivered45 W of 60 W max
0 Wfast: 60 W
0 → 50%
~24 min
0 → 100%
~1 h 10 min

Estimated from the manufacturer’s stated fast-charge time, with the device idle.

Try another charger

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 60 W or more with PPS. These chargers get there:

Galaxy S26 Ultra charging specs

Fast charging needs
60 W + PPS
Max input (approx.)
60 W
Battery
5,000 mAh
Samsung 45W Super Fast 2.0
45 W · USB-C · PPS

Sources: Samsung: Compare Galaxy S26, S26+, S26 Ultra · Samsung Newsroom: Galaxy S26 series announcement · Samsung: Enable fast charging (PPS requirement) · Samsung: 45W Super Fast Charger 2.0. Checked 2026-10-17.

Quick answers

Is it safe to charge the Galaxy S26 Ultra with the Samsung 45W Super Fast 2.0?

Yes. USB Power Delivery negotiates power, so the Galaxy S26 Ultra 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 S26 Ultra need for fast charging?

60 W or more, from a USB-C PD charger that supports PPS. Fastest charging needs a 60W USB PD charger with PPS.

How long does the Galaxy S26 Ultra take to charge with the Samsung 45W Super Fast 2.0?

About 24 min to 50% and 1 h 10 min to full, estimated with the device idle.