If you're searching for an Anker power bank capable of powering demanding devices like the new Xbox Ally X handheld gaming PC or the latest MacBook Pro 16", the one I currently use and recommend is on sale. Amazon is offering Prime members the Anker PowerCore 737 24,000mAh Power Bank with 140W Power Delivery for just $74.99 with free shipping. I’ve owned this exact model for years and still rely on it daily—it’s survived multiple flights and road trips and performs exactly as expected. While there are many solid battery brands today, Anker remains among the most trusted, if not the most reliable, on Amazon.

Anker 737 24,000mAh 140W Power Bank for $74.99

Amazon Prime member exclusive

Anker 737 24,000mAh Power Bank with 140W USB Type-C Power Delivery

6$109.99 save 32%$74.99 at Amazon

The Anker 737 is still one of our top-rated favorite Steam Deck chargers. This is a fairly heavy power bank, measuring 4.6"x2.2"x2" and weighing 1.4lbs—ideal for your travel bag or backpack, not your pocket. It features two USB Type-C ports and one USB Type-A port. The USB Type-C ports support up to 140W of Power Delivery, meaning one port can deliver 140W, or both can split the output based on connected devices (such as 70W + 70W or 100W + 40W).

For gaming handhelds, the Steam Deck supports up to 45W charging, the Asus ROG Ally up to 65W, the Xbox Ally X and Legion Go 2 up to 100W, and the Nintendo Switch and Switch 2 between 20W and 30W. With its 140W output, the Anker 737 can fully charge all these devices—even while you’re gaming. The new MacBook Pro 16" also accepts up to 140W, making this Anker power bank an excellent match.

A 24,000mAh battery equals 89Whr of capacity. With an 80% efficiency rating—typical for power banks—you get around 71Whr of usable power. This means the Anker 737 can fully charge a Steam Deck (40Whr) or Asus ROG Ally (40Whr) 1.8 times, an Xbox Ally X (80Whr) 0.9 times, and a Nintendo Switch 2 (20Whr) roughly 3.6 times. That’s why a 10,000mAh power bank falls short for high-drain handhelds—even a 24,000mAh model only gets you one full charge for an Xbox Ally X.

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