STK’s fast fuel 15K will juice your smartphone speedily six times over

Power banks are the saviour of the smartphone-addicted when away from the convenience of mains electricity. Thing is, if you’re off-grid and exploring there’s a good chance you’ll need to zap your talky box quickly. You know, like 5-hours-of-battery-life-in-5-minutes quick? Well, good news: STK’s fast fuel 15K (£50) does exactly that, boosting your mobile six times over (thanks to a 15000mAh capacity) with Quick Charge tech that’s four times as fast as your standard USB port. Better still, it’s clad in rubber for in-rucksack protection, while a pair of USB ports means you can share out the electrons – or boost your own barrage of devices.

Chris Rowlands Freelance contributor

About

For more than a decade, Chris has been finding and featuring the best kit you can carry. When he's not writing about his favourite things for Stuff, you'll find Chris field-testing the latest gear for TechRadar. From cameras to classic cars, he appreciates anything that gets better with age.

Areas of expertise

Cameras, gear and travel tech