Searching 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 on the product page (if you don't see it, try promo code "**WN9GQJRA**"). INIU power banks consistently receive positive reviews and are more affordable than comparable Anker models. This specific 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

$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 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 gaming handhelds. Even devices requiring higher charging rates (ROG Ally X and Lenovo Legion Go) will charge at the same speed as their official power bricks. Power banks in this price range typically only offer 20-30W Power Delivery, making this a standout deal.
Incidentally, this power bank is also excellent for charging your Apple iPhone 16, as ChargerLAB testing indicates a maximum charging rate of around 30W, even for the Pro Max model.
Need Something Even Cheaper?

$24.99 $8.99 at Amazon
This 10,000mAh power bank is available for only $8.99 after applying the available coupons. Finding a 10,000mAh power bank under $10 is rare, so grab it while you can! It will charge a Nintendo Switch from 0% to 100% approximately 1.9 times.
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