[Brandon Fiquett] does a lot of amateur radio communications and needed a rugged portable power supply that he could take with him on the road. He decided to make a 12V power supply out of an antique ...

Shoppers say it “worked flawlessly” and praise it for its “compact” form. Everyone has those days. You’ve overslept, it’s freezing outside, and your phone is completely dead. By the time you finally ...

The old-fashioned 12-volt lead acid battery hasn't changed much since the mid-1950s. Now it's getting a makeover to handle a host of new responsibilities in electrified, automated and software-defined ...