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 ...

Summer is here, and with it comes glorious sunshine. As well as keeping your vitamin D levels topped up, the sun can be a free source of off-grid power for your gadgets. If the thought of your ...

For as versatile and inexpensive as switch-mode power supplies are at all kinds of different tasks, they’re not always the ideal choice for every DC-DC circuit. Although they can do almost any job in ...

If you’ve been looking to purchase a power bank, chances are a solar power bank has at least tempted you. And why not? Power stations and solar panels are rapidly taking over the energy landscape, ...

Despite its small size — measuring about a foot tall and not even an inch thick when it’s folded up — the X-Dragon 20W was a reliable solar charger in our testing, not lagging far behind a much bigger ...

Every solar panel company makes bold claims about its panel efficiency, maximum wattage availability, temperature coefficient and other specs in optimal conditions. Anyone who does product testing ...

I rarely find myself in situations where I need to use a portable power charger for my iPhone, but I still carry one when traveling. I worry about my MacBook the most, and that's where I use the power ...