INIU 20,000mAh 65W USB Power Bank

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

Looking for a budget-friendly power bank to fast charge your Nintendo Switch, Steam Deck, or Asus ROG Ally? Amazon currently offers the powerful INIU 20,000mAh Power Bank with 65W USB-C Power Delivery for just $21.59 when you apply the 40% off coupon (or enter promo code WN9GQJRA). INIU models consistently receive positive reviews while costing less than comparable Anker products. This version maintains a 4.5-star average from 2,600 Amazon reviews with a Fakespot "B" rating.

With its 74Wh capacity (accounting for 80% efficiency), this portable charger provides approximately:

• 3.7 full charges for Nintendo Switch (16Wh)
• 1.9 charges for Steam Deck (40Wh) or Asus ROG Ally
• 1 full charge for ROG Ally X (80Wh)
• 1.5 charges for Lenovo Legion Go (50Wh)

The power bank features three output ports:

• 65W USB-C (optimal for fast-charging most gaming handhelds)
• 36W USB-C
• 18W USB-A

Notably, its 65W output matches or exceeds the included chargers for premium devices like the ROG Ally X and Legion Go - a rare feature at this price point where most competitors cap at 20-30W. It also works well for iPhone 16 models, which max out around 30W charging.

More Affordable Alternative

$24.99 save 64% $8.99 at Amazon

For those needing lighter charging capacity, this 10,000mAh model charges a Switch about 1.9 times. Apply both the 10% and 40% coupons on the product page to unlock this rare sub-$10 deal for a quality power bank.

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