This 40,000mAh power bank is the most versatile accessory I've tested to date - see for yourself

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. $149.99 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: 12 rules to follow when using and maintaining power stations - from an expert 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 ma ... Read full article.