Top portable chargers for mobiles

Though the Anker Nano branding may be a tad misleading, measuring in at 104mm tall, 26mm thick and a smartphone-like 215g, it’s still an ideal shape that’ll fit nicely into a pocket – and with an integrated USB-C cable that doubles up as a handle, you won’t need to carry around any long windy cables either. 

Plus, it’s one of the more stylish power banks around, and even hides an invisible screen behind its frosted plastic exterior. It’s on a par with the Anker Prime’s display too, showing information like current output, battery levels and an estimate of how much charge time is left – all very handy for charging a smartphone on the go.

Alongside the integrated 30W USB-C cable, there’s also a secondary USB-C port and a USB-A port if you’ve got other devices that you need to charge. The efficiency isn’t quite on par with that of more premium models at around 76.9%, delivering 7540mAh of its claimed 10,000mAh capacity in testing, but it’s still enough to fully charge any smartphone on the market. 

And, as with other mid-range power banks, it’s only the USB-C ports that can dole out the maximum 30W, and only when charging a single device at a time. The power bank’s three charging outlets all share the same 30W output, so the more devices you charge simultaneously, the longer it’ll take. 

Still, these are decent trade-offs if you’re looking for a compact power bank with added smarts, though at £49.99/$49.99, it is comfortably more expensive than some 10,000mAh 30W alternatives. 

Reviewer: Andrew Williams
Review: Anker Nano Power Bank 30W