In recent years, there has been a marked increase in the number of battery-operated small form factor devices such as tablet PCs, handheld video games, standalone movie players, digital photo frames, ...

A portable solar panel charger is a must-have for any tech-loving adventurer. Whether it’s phones, cameras, or GPS trackers, hikers and nomads are increasingly finding themselves in need of power on ...

Solar-powered systems typically require the system to operate from a very wide input voltage range due to the large variations in a solar panel’s output voltage. This range limits the ability to ...

Editor's note: An update made on January 18, 2023, on charger performance and availability three years after this story's original airing, follows the main story. When outlets are nowhere in sight, a ...

Extra batteries and portable power banks are great for keeping your electronic devices charged and operating when you’re off the grid, but they won’t last forever. Portable solar chargers don’t have ...

For years, the standard 12V cigarette lighter socket has been the persistent bottleneck of mobile travel, often taking over 10 hours to charge a 1kWh battery. Traditional setups also forced a ...

The sun is finally making a comeback, which means festivals, garden parties and – most thrillingly of all – the prospect of harvesting free electricity from the sky using one of the best portable ...