Iniu 20,000mAh Power Bank Now $9.99 on Amazon

Amazon's Spring Sale is the perfect time to snag the INIU 20,000mAh power bank at an unbeatable price of just $9.99 after clipping the 50% off coupon on the product page. It's rare to find a 20,000mAh power bank for under $10, especially one that offers a solid 22.5W of Power Delivery via USB Type-C, which is fast enough to charge a Nintendo Switch quickly. INIU power banks are known for their reliability and affordability, often priced lower than comparable 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. With an 80% power efficiency, you can estimate the number of full recharges for various gaming handhelds as follows:

• 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's 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 sufficient to charge the Nintendo Switch at its fastest rate of 18W and the iPhone 16 at nearly its maximum rate, as ChargerLAB has demonstrated that the Pro Max caps at 30W.

This compact power bank, measuring 5.3 x 1 x 2.7 inches, won't cause issues at airports, as its 20,000mAh capacity is well below the TSA's 27,000mAh carry-on limit. Its size also means it's easy to slip into a bag without drawing attention.

For those looking for more options, be sure to check out the best power banks for travel.

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