Switch 2 Power Bank 55% Off: Wish I'd Bought Sooner

While the Prime Day promotions have ended, one of the best-kept tech deals for Nintendo Switch 2 users remains available from INIU. Originally priced at $39.99, the 45W INIU 20000mAh Power Bank now drops to just $20.34 when you apply code Y7R7A2A7 at checkout.

This is a saving of over 55% on a charger that delivers 45W PD 3.1 fast charging, supports three devices at once, and includes a smart LED indicator showing remaining battery and estimated recharge time.

INIU 45W 20000mAh Power Bank with Built-in USB-C Cable

$39.99 save 49% $20.34 at Amazon Use code 'Y7R7A2A7'

This portable model features an integrated USB-C cable, triple-device charging, and can charge an iPhone 16 to 70% in just 25 minutes.

Weighing 13.1 ounces, it’s noticeably lighter than INIU’s 27,000mAh power bank (22 ounces), making it ideal if travel space is limited, you prefer a minimalist setup, or you want maximum savings.

Given the Switch 2’s internal battery is approximately 5220mAh, this power bank lets you swiftly resume Mario Kart World or dive into Donkey Kong Bananza as soon as it launches.

For a more compact yet Switch 2–compatible option, INIU’s 45W 10,000mAh model is also on sale at Amazon—only $11.65 after clipping the 47% off coupon on the product page.

INIU 10,000mAh 45W Power Bank with Detachable USB Type-C Cable

$29.99 save 61% $11.65 at Amazon

This INIU power bank features a 10,000mAh (37Wh) battery capacity. Factoring in 80% power efficiency, here’s how many full recharges you can expect for popular gaming devices:

Nintendo Switch (16Wh): about 1.9 times
Steam Deck (40Wh): about 0.74 times
Apple iPhone 16 (14Wh): about 2.1 times
Apple iPhone 16 Plus (18Wh): about 1.6 times
Nintendo Switch 2 (20Wh): about 1.5 times