Italy's Alessandro Volta is largely credited with inventing the first modern battery in 1800. His voltaic pile was an electrochemical battery utilizing copper, zinc, and brine-soaked paper. The lessons he learned developing the battery laid...

As recently as 2013, tech writers and futurists were predicting a rise in USB power delivery that would be so widespread it would threaten the existence of the current AC system. What was being called...

It must have been strange and exciting for homeowners in the early 20th century to see wall outlets installed in their homes. To people whose only exposure to controlled electricity was streetlights and factory power,...

The latest thing in lithium-ion battery charging is wireless charging. You might even have first-hand experience by way of your cell phone. You place your phone on a charging pad and, like magic, it recharges...