Can you charge an iPhone 17 with a Steam Deck 45W?

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

Answer
Yes, fast charging

The Steam Deck 45W meets the iPhone 17’s top charging speed of about 40 W.

Power delivered40 W of 40 W max
0 Wfast: 40 W
0 → 50%
~20 min
0 → 100%
~1 h 5 min

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

Try another charger

Apple 5W USB-Aold iPhone cubeApple 20W USB-CiPhone chargerApple 30W USB-CMacBook Air base adapterApple 35W Dual USB-Ctwo-port compact adapterApple 40W Dynamic (60W Max)iPhone 17/18 fast chargerApple 70W USB-CMacBook fast chargerApple 96W USB-CMacBook Pro 14″ fast chargerApple 140W USB-CMacBook Pro 16″ chargerSamsung 25W Super FastGalaxy chargerSamsung 45W Super Fast 2.0Galaxy Ultra chargerGoogle 30W USB-CPixel chargerGoogle 45W USB-CPixel Pro XL chargerSteam Deck 45WValve charger in the boxASUS ROG 65WROG Ally charger in the boxNintendo Switch 2 AC adapter60W charger in the boxAny 65W USB-C PD (PPS)typical GaN chargerAny 100W USB-C PD (PPS)high-power GaN chargerAnker 715 (Nano II 65W)compact GaN chargerUGREEN Nexode Pro 45W (Smart Display)UGREEN 45W display

How long to 50% with each charger

Shorter bar is faster. The highlighted row is the charger on this page.

Apple 40W Dynamic (60W Max)
40 W · full speed
~20 min
Apple 70W USB-C
40 W · full speed
~20 min
Apple 96W USB-C
40 W · full speed
~20 min
Apple 140W USB-C
40 W · full speed
~20 min
Samsung 45W Super Fast 2.0
40 W · full speed
~20 min
Google 45W USB-C
40 W · full speed
~20 min
Steam Deck 45W
40 W · full speed
~20 min
ASUS ROG 65W
40 W · full speed
~20 min
Nintendo Switch 2 AC adapter
40 W · full speed
~20 min
Any 65W USB-C PD (PPS)
40 W · full speed
~20 min
Any 100W USB-C PD (PPS)
40 W · full speed
~20 min
Anker 715 (Nano II 65W)
40 W · full speed
~20 min
UGREEN Nexode Pro 45W (Smart Display)
40 W · full speed
~20 min
Apple 35W Dual USB-C
35 W · standard
~22 min
Apple 30W USB-C
30 W · standard
~24 min
Google 30W USB-C
30 W · standard
~24 min
Samsung 25W Super Fast
25 W · standard
~27 min
Apple 20W USB-C
20 W · standard
~30 min
Apple 5W USB-A
5 W · slow
~1 h 10 min

iPhone 17 charging specs

Fast charging needs
40 W
Max input (approx.)
40 W
Steam Deck 45W
45 W · USB-C

Sources: Apple: Fast charge your iPhone · Notebookcheck: iPhone 17 reaches 50% in 20 minutes · Steam Deck tech specs. Checked 2026-10-17.

Quick answers

Is it safe to charge the iPhone 17 with the Steam Deck 45W?

Yes. USB Power Delivery negotiates power, so the iPhone 17 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 iPhone 17 need for fast charging?

40 W or more. Reaches 50% in about 20 minutes with a 40W adapter or higher.

How long does the iPhone 17 take to charge with the Steam Deck 45W?

About 20 min to 50% and 1 h 5 min to full, estimated with the device idle.

All chargers for iPhone 17What the Steam Deck 45W can chargeiPhone 18 Pro × Steam Deck 45WiPhone 18 Pro Max × Steam Deck 45WiPhone 17 Pro × Steam Deck 45WiPhone 17 Pro Max × Steam Deck 45WCharging time calculator