As part of its Spring Sale, Amazon is offering the popular INIU 20,000mAh power bank at an unbeatable price of just $9.99 after you clip the 50% off coupon on the product page. Finding a 20,000mAh power bank for under $10 is a rare deal, especially one with a robust 22.5W Power Delivery over USB Type-C, which is more than sufficient for fast charging devices like the Nintendo Switch. INIU power banks are known for their solid reviews and are more budget-friendly than similar Anker models.

INIU 20,000mAh Power Bank for $9.99

Clip the 50% Off Coupon

INIU 20,000mAh 22.5W USB Power Bank

0$29.99 save 67%$9.99 at Amazon

This INIU power bank features a substantial 20,000mAh, or 74Whr battery capacity. Considering an 80% power efficiency, here's how many full charges you can expect for various gaming handhelds:

• Nintendo Switch (16Whr): about 3.7 times
• Steam Deck (40Whr): about 1.9 times
• Asus ROG Ally (40Whr): about 1.9 times
• Asus ROG Ally X (80Whr): about 1 time
• Lenovo Legion Go (50Whr): about 1.5 times

It comes equipped with three output ports: one 22.5W USB Type-C port and two USB Type-A ports that support QuickCharge 4+. This setup is capable of charging the Nintendo Switch at its maximum rate of 18W and can charge the iPhone 16 at nearly its fastest rate, with ChargerLAB indicating a maximum of 30W for the Pro Max model.

With its compact size, this power bank is perfect for travel. At 20,000mAh, it's well within the TSA's 27,000mAh carry-on limit, and its dimensions of 5.3 x 1 x 2.7 inches make it easy to carry without drawing attention.

Looking for more options? Check out the best power banks for travel.

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