You don't see many 20,000mAh power banks priced under $20, but there is one deal available that just popped up today. Amazon has dropped the price of the CUKTECH 20,000mAh 45W Power Bank for $16.31 after you apply a 20% off coupon code "CUKTECH20". Better yet, you don't need to be an Amazon Prime member to get in on this deal.
The 45W power output makes it an ideal power bank for your Apple iPhone 17, Nintendo Switch, Switch 2, or Steam Deck handheld gaming PC, and the bigger 20,000mAh capacity is perfect for longer airplane flights or when you're away from an outlet for an extended period of time.
CUKTECH 20,000mAh 45W Power Bank for $16.31
The CUKTECH 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
- 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 has three total ports: one integrated 45W USB-C cable, one 45W USB-C port, and one 18W USB-A port. If you use two or three ports simultaneously, the power outputer throttles down to 15W per port. The 45W of Power Delivery is enough to charge the Nintendo Switch 2 (20W) and Steam Deck (35W) even while you're playing games at the same time. It will also fast charge the Apple iPhone 17 (30W). The built-in 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.