Anker 737 Power Bank: Now $49.99, Save 70%

If you're on the hunt for an Anker power bank capable of powering your demanding gaming handhelds like the Steam Deck or ROG Ally X, Amazon currently has an unbeatable deal for you. You can snag the Anker PowerCore 737 24,000mAh 140W Power Bank for just $49.99, offered by Woot, which is owned by Amazon. This price is a significant $20 drop from the last lowest price we reported, and it's unlikely to get any cheaper. Having personally used this power bank for several years across numerous flights and road trips, I can vouch for its durability and effectiveness; it's still performing as if it were brand new.

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 stands out as one of our top picks for charging the Steam Deck. This robust power bank measures 4.6"x2.2"x2" and weighs 1.4lbs, making it a perfect fit for your travel bag or backpack rather 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 flexibility allows for a single port to output 140W or a combined 140W across both ports, depending on the devices connected (e.g., 70W + 70W or 100W + 40W).

For gaming handhelds, the Steam Deck can charge 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 24,000mAh battery, equivalent to a 74Whr capacity, and an 80% power efficiency rating, you get approximately 59Whr of usable charge. This means the power bank can charge a Steam Deck or Asus ROG Ally from empty to full 1.5 times, an Asus ROG Ally X 0.75 times, and a Nintendo Switch about 3.7 times. This capacity underscores why we recommend a minimum of 20,000mAh for power-hungry gaming handhelds like the Steam Deck, Asus ROG Ally, and especially the Ally X.

The Anker 737 is TSA-approved

The TSA allows power banks with a capacity under 100Whr in carry-on luggage (check-in is prohibited). At 74Whr, the Anker 737 comfortably meets these requirements. Though its size might attract additional scrutiny at security checkpoints, my experience through numerous airports, including a single check at Tokyo NRT, confirms that it's easily cleared for travel.

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