A battery made from cheap and non-flammable iron and salt could provide emergency power in one of California’s high wildfire ...

A battery backup for the solar-mains hybrid lamp design that supplies a constant light output regardless of available solar ...

Whether you're facing a blackout or off-grid adventure, this compact gadget lets you charge your phone and power a light — no outlet needed.

A look at 11 Swiss Army Knives with battery-powered features, from clever LED tools to rare discontinued models you might still find online.

This article presents a permanent emergency lamp based on a series resonant current regulator that operates both as a ballast and as a battery charger. In this circuit, the power converter is placed ...

The three-metre square parasol with solar-powered LED strip lights is on sale for a limited time ...

AI-powered accounting startup Campfire announced Monday that it has raised a $35 million Series A led by Accel, with participation from Foundation Capital, Y Combinator, Capital 49, and angel ...