With the prices on imported goods continuing to rise, I don't see as many 20,000mAh power banks under $25 anymore. Fortunately, Amazon's Memorial Day Sale does drop the price on one such battery. For a limited time, you can pick up the Iniu 20,000mAh 22.5W Power Bank for just $16.82 after an automatic 49% coupon is applied during checkout. Better yet, you don't need to be an Amazon Prime member to get in on the discount.
Get a 20,000mAh Power Bank for Under $20
This Iniu power bank boasts a generous 20,000mAh, or 74Whr battery capacity. If you factor in 80% power efficiency, here are the approximate number of times you can fully recharge each gaming handheld:
- Nintendo Switch (16Whr) about 3.7 times
- Nintendo Switch 2 (19Whr) about 3.1 times
- Steam Deck (40Whr) about 1.5 times
- Apple iPhone 17 (14.3Whr) about 4.1 times
- Apple iPhone 17 Pro Max (19.8Whr) about 3 times
The Iniu power bank has three total ports: two USB Type-C and one USB Type-A. The 22.5W power output from the USB Type-C port is enough to charge the Nintendo Switch and Nintendo Switch 2 at their maximum rate, which means you can play and charge simultaneously. The included cable is a popular feature on newer power banks because you no longer have to bring along your own USB Type-C cable.
Eric Song is the IGN commerce manager in charge of finding the best gaming and tech deals every day. When Eric isn't hunting for deals for other people at work, he's hunting for deals for himself during his free time.
