Powering your Steam Deck or ROG Ally X just got easier (and cheaper!). Woot! is offering the Anker PowerCore 737 24,000mAh 140W Power Bank for just $69.99—the best price we've seen. Amazon Prime members get free shipping; otherwise, add $6. This powerhouse is a favorite among Steam Deck and Asus ROG Ally X users. I've used mine extensively over a year, through numerous flights and road trips, and it's still going strong.

Anker 737 24,000mAh 140W Power Bank for $69.99

Anker 737 PowerCore 24K 24,000mAh Power Bank with 140W USB Type-C Power Delivery

$149.99 $69.99 at Woot! (Save 53%)

The Anker 737 is a substantial power bank (4.6"x2.2"x2", 1.4lbs), best suited for travel bags or backpacks. It features two USB Type-C ports and one USB Type-A port. The USB-C ports boast a combined 140W power delivery—enough to charge even the most power-hungry handhelds simultaneously. For example, you could charge at 70W + 70W or 100W + 40W, depending on your devices.

This means it easily handles the Steam Deck (up to 38W), Asus ROG Ally (up to 65W), ROG Ally X (up to 100W), and Nintendo Switch (up to 18W), all at their maximum charging rates. Play and charge simultaneously? Absolutely.

A 20,000mAh battery translates to roughly 74Whr. With an 80% power efficiency (typical for power banks), you get about 59Whr of usable charge. This provides approximately 1.5 full charges for a Steam Deck or Asus ROG Ally (both ~40Whr), 0.75 charges for an Asus ROG Ally X (80Whr), and about 3.7 charges for a Nintendo Switch (16Whr). This highlights why we consider 20,000mAh the minimum for power-hungry handhelds like the Steam Deck and ROG Ally (especially the Ally X).

TSA-Approved

With a 74Whr capacity, the Anker 737 comfortably meets TSA carry-on requirements (under 100Whr). While its size might attract attention, I've personally passed through numerous airport security checkpoints with only one minor check (at Tokyo NRT).

Why Trust IGN's Deals Team?

IGN's deals team brings over 30 years of combined experience finding the best deals across gaming, tech, and more. We prioritize genuine value and only recommend products and deals we trust and have personal experience with. For more on our process, check out our deals standards. Follow us on Twitter for the latest deals!