$21 Power Bank: Fast Charging for Switch, Steam Deck, ROG Ally

Hunting for a budget-friendly power bank that can swiftly charge your Nintendo Switch, Steam Deck, or Asus ROG Ally? Look no further! Amazon currently offers the INIU 20,000mAh Power Bank, boasting up to 65W Power Delivery via USB Type-C, for just $21.59. This price is after clipping a 40% off coupon (if you don't see it, try promo code "**WN9GQJRA**"). INIU power banks consistently receive positive reviews and undercut comparable Anker models in price. This particular model boasts 2,600 Amazon reviews, averaging 4.5 stars, and a Fakespot "B" rating.

INIU 20,000mAh 65W USB Power Bank for $21.59

$44.99 save 52% $21.59 at Amazon
Use code 'WN9GQJRA'

This Iniu power bank packs a substantial 20,000mAh (74Whr) battery. Considering approximately 80% power efficiency, expect these approximate full recharges:

• 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

The Iniu power bank features three output ports: a 65W USB Type-C port, a 36W USB-Type-C port, and an 18W USB Type-A port. The 65W USB-C port is fast enough for most handhelds. Even for devices needing higher wattage (ROG Ally X and Lenovo Legion Go), it matches their official chargers. Power banks in this price range typically only offer 20-30W Power Delivery, making this a standout deal.

It's also a great choice for your Apple iPhone 16, as ChargerLAB testing shows a maximum charging rate around 30W, even for the Pro Max.

Need Something Even Cheaper?

$24.99 save 64% $8.99 at Amazon

This 10,000mAh power bank is available for just $8.99 after applying stacked coupons. Finding a 10,000mAh power bank under $10 is rare, so grab it while you can! It'll fully charge a Nintendo Switch approximately 1.9 times.

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