As part of Amazon's Spring Sale, you can snag the highly-rated INIU 20,000mAh power bank at an unbeatable price of just $9.99 after applying a 50% off coupon on the product page. Finding a 20,000mAh power bank for under $10 is a rare deal, especially one that offers a solid 22.5W Power Delivery over USB Type-C, perfect for fast charging your Nintendo Switch. INIU's power banks consistently receive strong reviews and offer better value than similar Anker models.
INIU 20,000mAh 22.5W USB Power Bank
Original Price: $29.99
Discounted Price: $9.99 at Amazon
Savings: 67%
This INIU power bank comes with a substantial 20,000mAh, or 74Whr, battery capacity. Considering an 80% power efficiency, here’s how many full charges you can expect for popular gaming handhelds:
- Nintendo Switch (16Whr): Approximately 3.7 times
- Steam Deck (40Whr): Approximately 1.9 times
- Asus ROG Ally (40Whr): Approximately 1.9 times
- Asus ROG Ally X (80Whr): Approximately 1 time
- Lenovo Legion Go (50Whr): Approximately 1.5 times
It features three output ports: one 22.5W USB Type-C port and two USB Type-A ports that support QuickCharge 4+. This setup allows for fast charging of the Nintendo Switch at 18W and nearly the maximum rate for the iPhone 16, which caps at 30W for the Pro Max, according to ChargerLAB.
The compact size of this power bank, measuring 5.3 x 1 x 2.7 inches, ensures it won't draw attention at airports, and its 20,000mAh capacity is well within the TSA's 27,000mAh carry-on limit.
For more charging options, explore our guide on the best power banks for travel.
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