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, Amazon has a fantastic deal you won't want to miss. You can grab the Anker PowerCore 737 24,000mAh 140W Power Bank for just $49.99. This deal is available through Woot, which is owned by Amazon, and it undercuts our previously reported lowest price by about $20. Having used this power bank for several years across numerous flights and road trips, I can confidently say it's a reliable choice that still performs as if it were brand new.
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
$149.99 save 67%
$49.99 at Amazon
The Anker 737 is one of our top picks for charging the Steam Deck. It's a substantial unit, measuring 4.6"x2.2"x2" and weighing 1.4lbs, making it more suited for your travel bag or backpack than your 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 of power. This can be configured as 140W from a single port or split into combinations like 70W + 70W or 100W + 40W, depending on your connected devices.
For gaming handhelds, the Steam Deck can handle 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 at the same time.
A 24,000mAh battery translates to a 74Whr capacity. With an 80% power efficiency, you get approximately 59Whr of usable charge. This means the Anker 737 can fully charge a Steam Deck (40Whr) or Asus ROG Ally (40Whr) 1.5 times, an Asus ROG Ally X (80Whr) 0.75 times, and a Nintendo Switch (16Whr) about 3.7 times. This capacity underscores why we believe a 20,000mAh power bank should be 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 TSA allows power banks under 100Whr in carry-on luggage, and the Anker 737, with its 74Whr capacity, fits this requirement perfectly. While its size might attract additional scrutiny, it's been through numerous airport checkpoints with ease. I've only been checked once at Tokyo NRT and passed without issue.
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