Yuasa

To most of us, the concept of a battery is nothing new—we know batteries are the way to store electrical (DC) energy for future use. But while the concept is easy to comprehend, understanding how a battery works can be less clear. More importantly, battery designs can vary greatly from application to application. (Hence why

Few things can make a kid go from happy to sad more quickly than these three words: “batteries not included.” After all, the latest electronic toy or gadget is useless without fresh batteries—and that’s why you’d never give an electronic gift without a good set of batteries, right? Right? The same principle applies to your