Forever running out of juice? Top up your battery-powered devices with our expert picks, from tiny smartphone chargers to portable power banks and even a power hat• The best iPhones in 2025: which Apple smartphone is right for youIt’s disempowering when your smartphone, laptop or other important gadget runs out of battery. With the flash of a graphic or a plaintive bleep, we lose a way to entertain ourselves, get things done, stay in touch or even get home safely. There’s a time and a place for a digital detox – but what is the time, and where am I?Carrying a power bank is your ticket out of electronic oblivion. These pocket-sized cuboids plug into compatible devices and charge them, often via assorted connections, including USB-C and USB-A. Most power banks are made for charging smartphones and smaller gadgets, such as fitness trackers and earbuds, but some models can also charge power-hungrier laptops and large portable speakers.Best power bank overall: Belkin BoostCharge Pro 3-port 20k£79.99 at ArgosBest power bank for portability: Anker Nano£29.99 at AnkerBest budget power bank: Belkin BoostCharge 10k with integrated cable£24.99 at Belkin