Baseus 20,000mAh 100W power bank with dual USB-C cables drops to $38.99

The Baseus Enerfill 20,000mAh 100W power bank is down to $38.99 on Amazon right now — that's 50% off — when you apply coupon code VWOKKU9Y at checkout. No Prime membership required, and orders can still arrive by June 21 if you need it as a Father's Day gift.

The Enerfill is a slim bar-style power bank with four outputs: two built-in 100W USB-C cables, an additional 100W USB-C port, and a 22W USB-A port. That 100W output is enough to fast-charge most non-gaming laptops including the MacBook Pro, and it covers every major gaming handheld at full speed — including power-hungry models like the Asus ROG Xbox Ally X and Lenovo Legion Go S, both of which support up to 100W power delivery. The two built-in cables clip together into a lanyard when not in use, and a clean digital display shows remaining charge. Up to four devices can charge simultaneously.

At 20,000mAh (74Whr), the Enerfill can fully recharge a Nintendo Switch 2 roughly 3.3 times, a Steam Deck 1.2–1.5 times, an ROG Xbox Ally about once, an ROG Xbox Ally X around 0.7 times, a Lenovo Legion Go S about once, an iPhone 17 roughly 4.2 times, and an iPhone 17 Pro Max about 3 times — all figures assuming 80% power efficiency. The 74Whr capacity also sits comfortably under TSA's 100Whr carry-on limit, so there's no issue bringing it on a plane.

It's a limited-time deal, so if you want a high-output travel power bank without spending much, this is a strong option at the price.