Baseus Blade Power Bank: 50% Off 20,000mAh 100W Charger

If you're searching for a slim yet powerful high-capacity power bank, this Baseus deal is worth a look. Amazon currently provides Amazon Prime members with the Baseus Blade 20,000mAh 100W power bank for just $39.99 after applying coupon code "NDC6X5B6." Unlike bulky rectangular power banks, the Baseus Blade has a remarkably slender profile. It offers enough output to fast-charge nearly every gaming handheld PC—including the latest Asus ROG Ally X and Lenovo Legion Go S—at their maximum supported speeds.

Baseus Blade 20,000mAh 100W Slim Power Bank for $39.99

Exclusive to Amazon Prime Members.

Baseus Blade 20,000mAh 100W Slim Power Bank

List Price: $79.99 | Save 50% | Now $39.99 at Amazon
Use promo code 'NDC6X5B6'

The Baseus Blade measures just 0.7 inches thick, while most high-capacity power banks exceed 1 inch in thickness. Baseus achieves this slim form by opting for a wider, more square-like body, roughly 5" x 5". This compact design helps it slide easily into a laptop bag or backpack sleeve. At about one pound, its weight remains comparable to other power banks in this category.

The wider chassis accommodates four ports: two USB Type-C ports each supporting 100W Power Delivery, plus two USB Type-A ports each rated at 30W output. Keep in mind, the total maximum output across all active ports is 100W. So even though the combined port ratings add up to 160W, using multiple ports simultaneously will cap total delivery at 100W.

20,000mAh capacity fully recharges all your gaming handhelds

This Baseus Blade features a solid 20,000mAh (74Wh) battery. Factoring in around 80% power efficiency, here's roughly how many full recharges you can expect for popular gaming handhelds and iPhones:

Nintendo Switch 2 (18Wh): about 3.3 times
Nintendo Switch (16Wh): about 3.7 times
Steam Deck (40Wh): about 1.5 times
Asus ROG Ally (40Wh): about 1.5 times
Asus ROG Ally X (80Wh): about 0.7 times
Lenovo Legion Go (50Wh): about 1.2 times
Lenovo Legion Go S (55Wh): about 1 time
Apple iPhone 16 (14Wh): about 4.2 times
Apple iPhone 16 Plus (18Wh): about 3.3 times

100W output enables fast charging for phones and gaming handhelds

With USB-C ports delivering up to 100W, the Baseus Blade automatically adjusts power output to match the maximum rate each connected device supports. The Nintendo Switch and Switch 2 can accept 18W–30W, the Steam Deck up to 39W, and the Asus ROG Ally up to 65W. The Asus ROG Ally X and Lenovo Legion Go S, however, can charge at up to 100W.

Airline-friendly power bank

You can travel with confidence—the 20,000mAh (74Wh) capacity stays well under TSA's 27,000mAh/100Wh carry-on limit, so airport security won't be an issue.

For more alternatives, browse our top portable power bank picks for travelers.