If you're in the market for a high-capacity power bank capable of powering today’s most demanding gaming handhelds—like the Steam Deck, ROG Ally X, or even the Nintendo Switch—you’re in luck. Amazon currently has an incredible deal on the Anker PowerCore 737, a 24,000mAh 140W portable charger now available for just $49.99. This exclusive offer is brought to you through Woot, an Amazon-owned marketplace, and represents a savings of over $20 compared to previous listings. As someone who has personally used this same model for years, I can vouch for its durability and performance—it's survived countless flights and road trips and still looks brand new.
Anker PowerCore 737 24,000mAh 140W Power Bank – Now $49.99
Anker PowerCore 737 24K 24,000mAh Power Bank with 140W USB Type-C Power Delivery
- Was: $149.99
- Now: $49.99 (Save 67%)
- Available at: Amazon
The Anker 737 stands out as one of the best portable charging solutions for power-hungry devices. While it's not compact enough for your pocket—measuring 4.6” x 2.2” x 2” and weighing 1.4 lbs—it’s perfect for tossing into your travel bag or backpack. The unit features two USB Type-C ports and one USB Type-A port, with the C ports supporting up to 140W of combined power delivery. That means you can get full 140W output from a single port, or a split like 70W + 70W or 100W + 40W depending on your connected devices.
Ideal for Gaming Handhelds
When it comes to gaming handhelds, the Anker 737 delivers serious performance. Here's how it matches up:
- Steam Deck: Up to 38W charging supported
- Asus ROG Ally: Up to 65W charging supported
- Asus ROG Ally X: Up to 100W charging supported
- Nintendo Switch: Up to 18W charging supported
This ensures you can charge any of these devices at their maximum supported rates—even while playing. With a total battery capacity of 24,000mAh (74Whr), and approximately 59Whr of usable energy after accounting for standard 80% efficiency loss, the Anker 737 offers impressive endurance:
- Charges a Steam Deck (40Whr) or Asus ROG Ally (40Whr): **1.5 times**
- Charges an Asus ROG Ally X (80Whr): **0.75 times**
- Charges a Nintendo Switch (16Whr): **3.7 times**
For gamers, this makes a 20,000mAh+ capacity power bank essential—especially when using more power-intensive devices like the Steam Deck or the newer ROG Ally X.
TSA-Approved for Air Travel
The Anker 737 meets TSA guidelines for carry-on luggage, as its 74Whr capacity falls well under the 100Whr limit. While airlines prohibit power banks in checked baggage, this unit should pass security checkpoints without issue. Although its large design might draw extra attention during screening, personal experience tells me it clears customs and airport security smoothly—I’ve carried it through many airports, including Tokyo’s Narita Airport, without complications.
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