Many of us are quite used to carrying around a handy power bank to top up our iPhone batteries during a long day away from a power socket, but these pocketable battery packs are usually not ...

The single-port charging speed is ideal for higher-end laptops, like the MacBook Pro 16-inch (though a MagSafe cable is required) as well as the latest PC handhelds such as the Asus ROG Ally X.