Can you charge a Galaxy Tab S12 Ultra with an Apple 30W USB-C?

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

Answer
Yes, standard speed

It charges at normal speed. For the fastest speed the Galaxy Tab S12 Ultra needs a charger with PPS, which the Apple 30W USB-C doesn’t support.

Power delivered15 W of 45 W max
0 Wfast: 45 W
0 → 50%
~1 h 30 min
0 → 100%
~3 h 50 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 45 W or more with PPS. These chargers get there:

Galaxy Tab S12 Ultra charging specs

Fast charging needs
45 W + PPS
Max input (approx.)
45 W
Battery
11,600 mAh
Apple 30W USB-C
30 W · USB-C

Sources: Samsung Newsroom: Galaxy Tab S12 series · Samsung: Enable fast charging (PPS requirement) · Apple: Use a power adapter with your Mac. Checked 2026-10-17.

Quick answers

Is it safe to charge the Galaxy Tab S12 Ultra with the Apple 30W USB-C?

Yes. USB Power Delivery negotiates power, so the Galaxy Tab S12 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 Tab S12 Ultra need for fast charging?

45 W or more, from a USB-C PD charger that supports PPS. Super Fast Charging up to 45W: 0–100% in about 95 minutes with Samsung’s 45W adapter (sold separately).

How long does the Galaxy Tab S12 Ultra take to charge with the Apple 30W USB-C?

About 1 h 30 min to 50% and 3 h 50 min to full, estimated with the device idle.