Anker 737 Power Bank Now $49.99: Save 70% on 24,000mAh, 140W Model

If you're in the market for a high-performance power bank that can keep up with power-hungry gaming handhelds like the Steam Deck or ROG Ally X, Amazon currently has an exceptional offer. The Anker PowerCore 737 24,000mAh 140W Power Bank is available for just $49.99 through Woot, which is owned by Amazon. This price represents a significant discount—nearly $20 off our previously noted best deal—and it’s unlikely to drop further.

Having personally used this exact power bank for several years, I can confidently say it delivers on both performance and durability. It has endured numerous flights and road trips without any issues, maintaining its reliability and build quality throughout.

Anker 737 24,000mAh 140W Power Bank – Just $49.99

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

This powerful portable charger ranks among our top choices for Steam Deck users. While it's not compact enough for pocket carry due to its dimensions of 4.6" x 2.2" x 2" and a weight of 1.4 lbs, it's perfect for travel bags or backpacks. The device features two USB Type-C ports and one USB Type-A port. Both Type-C ports support up to 140W of power delivery, meaning you can either draw 140W from one port or split the power across both (e.g., 70W + 70W or 100W + 40W).

When it comes to charging gaming handhelds, the Anker 737 excels. It supports full-speed charging for devices such as:

• Steam Deck – Up to 38W
• ASUS ROG Ally – Up to 65W
• ASUS ROG Ally X – Up to 100W
• Nintendo Switch – Up to 18W

Thanks to its robust output, you can even play and charge simultaneously without any performance compromise.

The 24,000mAh battery capacity equates to approximately 74Whr. With an average efficiency rating of 80%, you get around 59Whr of usable energy. That translates into roughly:

• 1.5 full charges for a Steam Deck or ASUS ROG Ally (both ~40Whr)
• 0.75 charges for the more power-intensive ROG Ally X (~80Whr)
• Over 3.7 charges for a Nintendo Switch (~16Whr)

For power-hungry devices like the Steam Deck and the ASUS ROG Ally X, we recommend a minimum capacity of 20,000mAh. The Anker 737 exceeds that standard comfortably.

TSA Compliance – Travel-Friendly Design

The TSA allows power banks under 100Whr in carry-on luggage (none are permitted in checked baggage). At 74Whr, the Anker 737 falls well within these limits. While its rugged design might attract extra scrutiny at security checkpoints, it should pass inspection without issue. From personal experience, I’ve traveled internationally with this unit multiple times—including through Tokyo’s NRT airport—and have never had it denied.

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