If you're in the market for a high-performance power bank capable of keeping up with demanding gaming handhelds like the Steam Deck or ASUS ROG Ally X, Woot! currently has an unbeatable deal. You can now grab the Anker PowerCore 737 — a 24,000mAh, 140W powerhouse — for just **$69.99**. Amazon Prime members enjoy free shipping, while others pay only $6 for delivery. This is the lowest price we’ve seen yet on one of our top-recommended portable chargers for serious mobile gamers.
Anker PowerCore 737 – 24,000mAh 140W Power Bank
Only $69.99 at Woot!
Why the Anker 737 Stands Out
The Anker PowerCore 737 measures 4.6 x 2.2 x 2 inches and weighs approximately 1.4 pounds — making it more suited for your travel bag than your pocket. It features two USB Type-C ports and one USB Type-A port, with both Type-C ports supporting up to 140W of power delivery. This means you can use one port at full 140W capacity or split the power between devices (e.g., 70W + 70W or 100W + 40W), depending on your needs.
For gaming handheld owners, this power bank is more than up to the task. The Steam Deck supports up to 38W charging, the ASUS ROG Ally up to 65W, the ROG Ally X up to 100W, and the Nintendo Switch up to 18W. The Anker 737 delivers enough juice to charge all these devices at their maximum supported speeds — even allowing you to play and charge simultaneously without performance drops.
Real-World Battery Performance
With a 74Whr battery capacity (based on 20,000mAh) and a typical 80% efficiency rating, you get around 59Whr of usable power. Here's how that translates into real-world usage:
- Steam Deck (40Whr): ~1.5 full charges
- ASUS ROG Ally (40Whr): ~1.5 full charges
- ASUS ROG Ally X (80Whr): ~0.75 full charge
- Nintendo Switch (16Whr): ~3.7 full charges
Given the power consumption of modern handheld consoles, a minimum capacity of 20,000mAh is highly recommended — especially if you’re using a device like the ROG Ally X. The Anker 737 fits the bill perfectly.
TSA Compliance & Travel-Friendly Design
TSA regulations allow power banks under 100Whr in carry-on luggage (they are not permitted in checked baggage). At 74Whr, the Anker 737 is fully compliant. While its rugged design may draw extra attention during airport security checks, it should pass through without issue. I personally have used it on numerous flights worldwide, including a checkpoint at Tokyo’s Narita Airport, with no complications.
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