If you're in the market for a power bank that can keep up with the high energy demands of gaming handhelds like the Steam Deck or ROG Ally X, Amazon has a fantastic deal on the Anker PowerCore 737. You can grab this 24,000mAh, 140W powerhouse for just $49.99, a deal offered through Woot, Amazon's marketplace vendor. This price beats our previously reported lowest by about $20, and it's unlikely to drop any further. Having used this power bank myself for several years across numerous flights and road trips, I can confidently say it's a reliable choice that remains in excellent 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. It's a substantial unit, measuring 4.6"x2.2"x2" and weighing 1.4lbs, making it 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 Type-C ports capable of delivering up to 140W. This means it can provide 140W from a single port or split the power between ports, such as 70W + 70W or 100W + 40W, depending on the connected devices.
For gaming handhelds, the Steam Deck charges at up to 38W, the Asus ROG Ally at up to 65W, the Asus ROG Ally X at up to 100W, and the Nintendo Switch at up to 18W. The Anker 737 can charge all these devices at their maximum rates, allowing you to play and charge at the same time.
With a 20,000mAh battery, equivalent to a 74Whr capacity, and an 80% power efficiency, you get around 59Whr of usable charge. This is enough to fully charge a Steam Deck or Asus ROG Ally 1.5 times, an Asus ROG Ally X 0.75 times, and a Nintendo Switch about 3.7 times. This demonstrates why a 20,000mAh capacity is essential for powering high-demand 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. Its robust appearance might prompt a check at airport security, but in my experience, it has been cleared without issues, including at Tokyo NRT.
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