[Editor’s note: The hacker requested that we remove the image for legal reasons, so it’s blurry now. We hope all’s well!] Lithium technology has ushered in a new era of batteries with exceptionally ...

Disposable batteries seem so 1990s. Sure, it’s nice to be able to spend a couple of bucks at the drugstore and get a flashlight or TV remote back in the game, but when the device is a daily ...

In this comprehensive tutorial, you'll learn how to make a battery charger from scratch! Whether you're a DIY enthusiast or a curious beginner, this step-by-step guide will walk you through the entire ...