Home News > This $21 Power Bank Can Fast Charge Your Nintendo Switch, Steam Deck, or Asus ROG Ally Multiple Times

This $21 Power Bank Can Fast Charge Your Nintendo Switch, Steam Deck, or Asus ROG Ally Multiple Times

by Lucas Mar 14,2025

Hunting for a budget-friendly power bank that can swiftly charge your Nintendo Switch, Steam Deck, or Asus ROG Ally? Look no further! Amazon's offering the INIU 20,000mAh Power Bank, boasting up to 65W Power Delivery via USB-C, for just $21.59. Snag this deal by clipping the 40% off coupon on the product page (or use code "**WN9GQJRA**" if the coupon isn't visible). INIU power banks consistently receive positive reviews and are significantly more affordable than comparable Anker models. This particular 20,000mAh model boasts 2,600 Amazon reviews with a 4.5-star average and a Fakespot "B" rating.

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

INIU 20,000mAh 65W USB Power Bank

$44.99 $21.59 at Amazon. Use code 'WN9GQJRA'

This INIU power bank packs a substantial 20,000mAh (74Whr) battery. Considering approximately 80% power efficiency, here's how many full charges you can expect:

  • 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 power bank features three output ports: a 65W USB-C port, a 36W USB-C port, and an 18W USB-A port. The 65W USB-C port is fast enough for most handhelds, and even matches the official charger speed for devices like the ROG Ally X and Lenovo Legion Go. Power banks in this price range typically only offer 20-30W Power Delivery, making this an exceptional value.

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

Need Something Even Cheaper?

INIU 10,000mAh USB Power Bank

$24.99 $8.99 at Amazon

Grab this 10,000mAh power bank for only $8.99 after applying the available coupons. Finding a 10,000mAh power bank under $10 is rare, so act fast! It'll charge a Nintendo Switch approximately 1.9 times.

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