If you're in the market for a power bank that can keep up with the high demands of gaming handhelds like the Steam Deck or ROG Ally X, you're in luck. Amazon is currently offering a fantastic deal on the Anker PowerCore 737 24,000mAh 140W Power Bank for just $49.99. This deal is available through Woot, Amazon's marketplace vendor, and it undercuts the previous lowest price we've seen by approximately $20. As someone who has used this power bank for years across numerous flights and road trips, I can confidently say it remains as reliable as ever.
Anker 737 24,000mAh 140W Power Bank for $49.99

Anker 737 PowerCore 24K 24,000mAh Power Bank with 140W USB Type-C Power Delivery
Originally priced at $149.99, this power bank is now available for $49.99, marking a significant 67% discount. The Anker 737 is a top choice for charging the Steam Deck, thanks to its robust capabilities. At 4.6"x2.2"x2" and weighing 1.4lbs, it's designed to be carried in a travel bag or backpack rather than a pocket. It features two USB Type-C ports and one USB Type-A port, with the Type-C ports capable of delivering up to 140W. This means you can charge a single device at 140W or split the power between two devices, such as 70W + 70W or 100W + 40W, depending on your needs.
For gaming handhelds, the Steam Deck supports up to 38W, the Asus ROG Ally up to 65W, the Asus ROG Ally X up to 100W, and the Nintendo Switch up to 18W. The Anker 737 can charge all these devices at their maximum rates, allowing you to play and charge simultaneously.
With a 24,000mAh battery, which translates to a 74Whr capacity, and an 80% power efficiency rating, you get about 59Whr of usable charge. This means the power bank can fully charge a Steam Deck or Asus ROG Ally 1.5 times, an Asus ROG Ally X 0.75 times, and a Nintendo Switch approximately 3.7 times. This capacity highlights why a 20,000mAh power bank is considered the minimum for power-hungry devices like the Steam Deck and Asus ROG Ally, especially the Ally X.
The Anker 737 is TSA-approved
The Anker 737 falls comfortably under the TSA's 100Whr limit for carry-on luggage, making it travel-friendly. Although its size might attract additional scrutiny, it has passed airport security checks without issues. Personally, I've only been checked once at Tokyo NRT and cleared without any problems.
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