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 the 40% off coupon on the product page (if you don't see it, try using promo code "**WN9GQJRA**"). INIU power banks consistently receive positive reviews and offer a more attractive price point than comparable Anker models. 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

INIU 20,000mAh 65W USB Power Bank
$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 recharge cycles for your gaming handheld:
- 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 charging speeds (ROG Ally X and Lenovo Legion Go), it matches their official power brick. Power banks in this price range typically only support 20-30W Power Delivery, making this a superior deal.
Incidentally, this power bank is also excellent for charging your Apple iPhone 16, as ChargerLAB tests indicate a maximum charging rate of around 30W, even for the Pro Max model.
Need something even cheaper?

INIU 10,000mAh USB Power Bank
$24.99 save 64% $8.99 at Amazon
Snag this 10,000mAh power bank for only $8.99 after applying the available coupons. Finding 10,000mAh power banks under $10 is rare, so act fast! This will fully charge a Nintendo Switch approximately 1.9 times.
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