If you're in the market for an Anker power bank that can keep up with the power demands of gaming handhelds like the Steam Deck or ROG Ally X, Woot! has an unbeatable deal for you. You can snag the Anker PowerCore 737 24,000mAh 140W Power Bank for just $69.99. Amazon Prime members enjoy free shipping, while others will need to add $6. This is the lowest price we've seen for this top-rated charger for the Steam Deck and Asus ROG Ally X. I've personally used this power bank for over a year, taking it on 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
30% off $149.99, save 53%, now $69.99 at Woot!
The Anker 737 is a robust power bank, measuring 4.6"x2.2"x2" and weighing 1.4lbs. It's designed to fit in your travel bag or backpack rather than your pocket. With two USB Type-C ports and one USB Type-A port, the USB Type-C ports can deliver up to 140W. This means you can use a single port for 140W or split the power between both ports (e.g., 70W + 70W or 100W + 40W), depending on your 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 PowerCore 737 can charge all these devices at their maximum rate, allowing you to play and charge at the same time.
A 20,000mAh battery equates to a 74Whr capacity. With an 80% power efficiency rating (standard for power banks), you get about 59Whr of usable charge. This means the power bank can fully charge a Steam Deck (40Whr) or Asus ROG Ally (40Whr) about 1.5 times, an Asus ROG Ally X (80Whr) about 0.75 times, and a Nintendo Switch (16Whr) around 3.7 times. This is why we recommend a minimum of 20,000mAh for power-hungry devices like the Steam Deck and Asus ROG Ally, especially the Ally X.
The Anker 737 is TSA-approved
The TSA allows power banks up to 100Whr in carry-on luggage (check-in is prohibited). The Anker 737, with its 74Whr capacity, is well within these limits. Its size might attract some attention at airport security, but it's always cleared without issue. I've passed through many checkpoints and was only inspected once at Tokyo NRT, where it was cleared without any problems.
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