You've probably held one in your hand without realizing how much work these tiny power sources do. Coin cell batteries—those small, round discs that look like little metal coins—power dozens of dev...

If you've ever dealt with the crusty white mess from a leaking alkaline battery, you know the headache it causes. But what about lithium coin cell batteries—those small, round CR2032s powering your...

So you've got a small device that needs power—maybe it's a key fob, a watch, or your computer's CMOS system. Chances are, it runs on a lithium coin cell battery. But here's the question: how long w...