Iniu's $18, 20,000mAh Power Bank: Fast Charges Switch, Deck, iPhone

Author : Joshua May 21,2025

If you're in the market for an affordable power bank that can fast charge your Nintendo Switch, Steam Deck, or Apple iPhone 16, look no further than today's deal on Amazon. You can snag the Iniu 20,000mAh Power Bank, which offers up to 45W of Power Delivery over USB Type-C, for just $18.31 after applying the promo code "E58LOYPK". This model is highly rated, boasting around 800 reviews with a 4.7-star average and an impressive "A" rating from Fakespot.

INIU 20,000mAh 42W USB Power Bank

$39.99 save 54%
$18.31 at Amazon
Use code 'E58LOYPK'

This Iniu power bank packs a hefty 20,000mAh, or 74Whr battery capacity. With an 80% power efficiency, here's how many full recharges you can expect for each device:

  • Nintendo Switch (16Whr): about 3.7 times
  • Steam Deck (40Whr): about 1.9 times
  • Apple iPhone 16 (14Whr): about 4.2 times
  • Apple iPhone 16 Plus (18Whr): about 3.3 times

The power bank features three output ports: a built-in 45W USB Type-C cable, a 45W USB Type-C port, and a USB Type-A port with up to 18W of power. The 45W Power Delivery is sufficient to charge the Nintendo Switch (18W) and Steam Deck (40W) at their fastest rates. It's also an excellent choice for charging the Apple iPhone 16, as ChargerLAB tests indicate that the maximum charging rate tops out at around 30W, even for the Pro Max model.

A standout feature of this power bank is its built-in cable, commonly found in newer, more expensive models. This eliminates the need to carry an additional USB Type-C cable. The cable can be clipped onto the power bank to create a convenient lanyard for travel. The cable is robust, with a break strength of 44 pounds, while the lanyard loop, when attached, has a break strength of 13 pounds.

What about the new Nintendo Switch 2?

The Nintendo Switch 2 is set to launch on June 5. While it's designed for portability, Nintendo has stated a minimum battery life of 2 hours for intense games. This duration is suitable for a morning commute, but for longer flights or extended time away from an outlet, a reliable power bank is essential. The Iniu power bank featured here could be an excellent option, especially if the Switch 2 supports higher charging outputs.

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