Whether you're facing a blackout or an off-grid adventure, this compact gadget lets you charge your phone and power a light — ...

Nerd Ralph loves cheap and dirty hacks, and for that we applaud him. His latest endeavor is a LiFePO4 battery charger that he made out of parts he had on hand for under $0.50 US. (Although we think he ...

You could go the Tesla route to build out a complete energy system with an electric car, Powerwall battery for energy storage, and solar tiles to gather power from the sun. You can then charge your ...

The humble battery charger has evolved to a smart, microprocessor-controlled battery charger-maintainer, able to detect weak batteries and—to an extent—“repair” them, alert the operator to dangerous ...

When your battery goes dead—whether it’s because you left the headlights on or it’s just old—not having to call for a tow truck can save you a few hours and a huge headache, even if the tow is ...