Starting today, Amazon has discounted the high-capacity, high-output INIU 20,000mAh 65W power bank to just $26.46 when you apply the 49% off coupon on the product page. Combined with the instant discount, you're saving a total of 55%. This portable charger is perfect for long flights or trips where access to a power outlet may be limited. It's powerful enough to charge nearly any smartphone or gaming handheld—including newer models like the Asus ROG Ally X and Lenovo Legion Go S—even while you're actively playing games.
INIU 20,000mAh 65W Power Bank for $26.46
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INIU 20,000mAh 65W USB Power Bank
1$59.99 save 56%$26.46 at Amazon
INIU markets this power bank as "ultra small," and indeed, its footprint is more compact than many 20,000mAh models, measuring just 4 inches long and 3 inches wide. However, it is thicker at 1.1 inches and weighs a comparable 11 ounces. It features three ports: one USB-C port with 65W output, another USB-C port with 36W output, and a USB-A port with 18W output. Keep in mind that the maximum total output is 65W. While the combined potential of all ports is 119W, they can only deliver up to 65W simultaneously across all three.
The 20,000mAh capacity can fully recharge all your gaming handhelds
This INIU power bank has a substantial 20,000mAh (74Wh) battery capacity. Factoring in approximately 80% power efficiency, here is the estimated number of full recharges you can expect for various gaming handhelds and iPhone models:
Nintendo Switch 2 (18Wh): about 3.3 times.Nintendo Switch (16Wh): about 3.7 times.Steam Deck (40Wh): about 1.5 times.Asus ROG Ally (40Wh): about 1.5 times.Asus ROG Ally X (80Wh): about 0.7 times.Lenovo Legion Go (50Wh): about 1.2 times.Lenovo Legion Go S (55Wh): about 1 time.Apple iPhone 16 (14Wh): about 4.2 times.Apple iPhone 16 Plus (18Wh): about 3.3 times.
The 65W output fast-charges nearly all phones and gaming handhelds
The 65W output exceeds what's typical at this price point and is sufficient to charge any phone or gaming handheld during active use. It supports the maximum charging rate for most handhelds, including the Nintendo Switch and Switch 2 (18W-20W), Steam Deck (35W), and Asus ROG Ally (65W). Newer models like the Asus ROG Ally X and Lenovo Legion Go can accept up to 100W, but using 65W is recommended to maximize long-term battery health. Notably, these two devices even ship with official 65W chargers.
This power bank is airplane-friendly
Travelers can pack it with confidence. Its 20,000mAh (74Wh) capacity is well under the TSA's carry-on limit of 27,000mAh/100Wh, ensuring no issues at airport security.
For more choices, see our top picks for the best travel power banks.
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