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

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. Scoring a 20,000mAh power bank for under $10 is a rare find, especially when it boasts a solid 22.5W Power Delivery over USB Type-C—enough to fast charge your Nintendo Switch. INIU's power banks are well-reviewed and offer a more budget-friendly alternative to similar Anker models.

INIU 20,000mAh 22.5W USB Power Bank

Clip the 50% Off Coupon

Original Price: $29.99
Discount: 67%
Final Price: $9.99 at Amazon

This Iniu power bank comes packed with a 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 features three output ports: one 22.5W USB Type-C port and two USB Type-A ports with QuickCharge 4+ support. This setup allows you to charge your Nintendo Switch at its maximum 18W rate and your iPhone 16 nearly at its peak (with ChargerLAB confirming a cap at 30W for the Pro Max).

The compact size of this power bank—measuring just 5.3 x 1 x 2.7 inches—means you won't have to worry about it being flagged at airports, as its 20,000mAh capacity is well under the TSA's 27,000mAh carry-on limit. Plus, its small size makes it easy to slip into your bag without drawing attention.

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

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