The most versatile portable battery I've tested can do more than just output 300W of power

ZDNET's key takeaways The Cuktech 30 is a compact yet powerful power bank that can output a maximum of 300W. It can recharge in under 2.5 hours thanks to 140W USB-C charging At 40,000mAh/144Wh, it's too big to take on an airplane. View now at Amazon Power banks come in all shapes and sizes. Some are small enough to attach to your phone, while others are so big and bulky they come with a handle. Occasionally, you'll find one that sits somewhere in the middle, where things get interesting. Also: The best power banks you can buy Take the Cuktech 30, for example. This power bank packs impressive power and functionality into a compact, portable design. But there's more to it than the looks. This is one of the most versatile charging accessories I've tested to date. Here's why. For starters, the power bank is a cube measuring 4.2 x 3.4 x 3.5 inches and weighing just under 2.5 pounds. It houses eight 21700 EV-grade lithium cells, offering a massive 40,000mAh/144Wh of total power. That's ... Read full article.