If you're on the hunt for an Anker power bank that can keep up with the power demands of high-performance gaming handhelds like the Steam Deck or ROG Ally X, Amazon has a fantastic deal you won't want to miss. Right now, you can snag the Anker PowerCore 737 24,000mAh 140W Power Bank for just $49.99. This offer is available through Woot, a marketplace owned by Amazon, and it undercuts the previous lowest price we've seen by about $20. As someone who's used this exact model for years, I can vouch for its durability and reliability; it's been my go-to companion on numerous flights and road trips and remains in perfect condition.

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

$149.99 save 67% $49.99 at Amazon

The Anker 737 is a top pick for charging devices like the Steam Deck. With dimensions of 4.6"x2.2"x2" and a weight of 1.4lbs, it's more suited for a travel bag or backpack rather than a pocket. It features two USB Type-C ports and one USB Type-A port, with the USB Type-C ports capable of delivering up to 140W. This allows for flexible power distribution, such as 140W from a single port, or a combination like 70W + 70W or 100W + 40W across both ports.

For gaming handhelds, the Anker 737 can handle the maximum charging rates of the Steam Deck (38W), Asus ROG Ally (65W), Asus ROG Ally X (100W), and Nintendo Switch (18W). This means you can play and charge simultaneously without any issues.

A 24,000mAh battery translates to a 74Whr capacity. With an 80% power efficiency, you get about 59Whr of usable charge. This is enough to fully charge a Steam Deck or Asus ROG Ally about 1.5 times, the Asus ROG Ally X about 0.75 times, and the Nintendo Switch around 3.7 times. This demonstrates why a 20,000mAh capacity is a good baseline for more power-intensive gaming handhelds.

The Anker 737 is TSA-approved

The TSA allows power banks under 100Whr in carry-on luggage, and the Anker 737 fits comfortably within this limit at 74Whr. Although its size might attract some scrutiny, it's generally easy to get through airport security. I've personally cleared numerous checkpoints, with only one instance of additional inspection at Tokyo NRT, which was resolved without any issues.

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