Amazon's Spring Sale brings an unbeatable offer on the INIU 20,000mAh power bank, now available at a jaw-dropping price of $9.99 after clipping the 50% off coupon on the product page. Finding a 20,000mAh power bank for under $10 is a rare opportunity, especially one that boasts a solid 22.5W Power Delivery over USB Type-C, which is powerful enough to fast charge your Nintendo Switch. Known for their reliability and cost-effectiveness, INIU power banks provide an affordable alternative to the pricier 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 robust 20,000mAh or 74Whr battery capacity. Considering an 80% power efficiency, you can approximately recharge the following gaming handhelds this many times:

• 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 allows for charging your Nintendo Switch at its fastest rate of 18W and can nearly max out the charging speed for an iPhone 16, with ChargerLAB indicating a cap at 30W for the Pro Max model.

With its compact size of 5.3 x 1 x 2.7 inches, this power bank is well within TSA's 27,000mAh carry-on limit, making it perfect for travel without drawing any unwanted attention.

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

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