Steam Deck charger wattage

Valve lists a 45W USB Type-C PD3.0 power supply for Steam Deck — shop that USB-C PD class (or a verified 65W GaN travel brick), not a random phone cube.

Manufacturer input is one line in Valve’s Steam Deck Tech Specs & Facts press sheet: Power → Input → 45W USB Type-C PD3.0 power supply (accessed 8 Sep 2026). The same sheet lists a 40Whr battery. Full method for reading any brick: how to pick.

Official power input

From Valve’s LCD Steam Deck tech specs PDF. Match the USB-C PD wattage class before you replace a lost or broken adapter.

• Device Steam Deck (Valve tech specs PDF) Listed power input 45W USB Type-C PD3.0 power supply Battery (same sheet) 40Whr; gameplay life estimate 2–8 hours (settings-dependent) Shopping class 45W USB-C PD / GaN to match Valve’s published input
• Port USB-C (also DisplayPort 1.4 Alt Mode / USB 3.2 Gen 2 on the same sheet) What that means Use a USB-C PD charger and a USB-C to USB-C cable rated for the watts — not USB-A-only phone leads Optional headroom 65W multi-port GaN when you also charge a phone from the same brick (check the port’s simultaneous-output table)

This page cites Valve’s LCD Steam Deck press tech specs for the 45W PD3.0 line. We do not invent a separate OLED wattage table here — shop the same USB-C PD class on 45W unless Valve publishes a different input for your exact model.

What wattage to buy

Match Valve’s 45W USB-C PD3.0 input, or step to a verified 65W GaN brick for multi-device travel. Links go to our wattage pages with merchant Buy buttons.

• If you lost… The included 45W USB-C PD adapter Buy Shop 45W USB-C PD / GaN to stay in Valve’s published class Cable USB-C to USB-C PD cable; 45W does not need a 5A e-marker (see e-marked cable guide for 100W)
• If you want… Deck + phone on one travel brick Buy Nearby 65W multi-port GaN — confirm one port still maps ≈45W when both ports are used Skip USB-A-only phone bricks and unlabeled “fast charge” cubes under 45W PD

Price check status — 31 Oct 2026

31 Oct 2026 update: Amazon US buy-boxes were re-read 31 Oct 2026 (~9:34pm ET, headless Chrome, en-US, ZIP 10001; no bot check). Main price = Amazon’s Regular Price / featured Buy New. B0G1T3H97Y ($39.99 regular / $25.99 Prime) and B0DFCH3C4W ($89.99 regular / $79.99 Prime) show an explicit Prime-exclusive lower price. B0CZ6LXL8R also shows one ($69.99 regular / $59.99 Prime, first seen 26 Oct). B0B2MM1W65 $15.99 and B09C5RG6KV $29.99 print regular only (no Prime bracket). Deal prices change fast — open the Amazon page for the live price. Apple, UGREEN and Anker product pages were re-read 31 Oct 2026 (~9:34pm ET, US, headless Chrome): UGREEN Nexode 100W 4-port (SKU 40737) still $54.99 (the $39.99 sale ended 26 Oct); UGREEN Nexode Air 45W still on sale at $15.99 (regular $24.99); every Apple, UGREEN and Anker dollar matched. Apple replaced its 70W and 140W adapters on 28 Oct (new AC Connector 2 models; the old product pages now return Page Not Found), so Apple Buy links now go to the new 70W MKFP4AM/A ($59.00) and 140W MKFQ4AM/A ($99.00) listings, both Add to Bag tonight.

Reused verified carts from 45W and 65W after tonight’s Buy-link re-check. Not live. No Valve OEM adapter dollar invented.

Where to buy

Buy links sit on each price card above. We may earn a commission if you buy through those links; it does not change the price you pay. See the full disclosure.

No ranking. Stock and price change. Related: 45W, 65W, Dell XPS 13, 100W e-marked cable, how to pick.