Batteries: The Absolute Definitive Guide

Nobody thinks about batteries—until they've run out of juice, of course. But this humble and surprisingly ancient technology has done far more for human civilization than most people realize. » 12/06/12 2:29pm 12/06/12 2:29pm

What all battery types have in common—from the tiny button cells that power watches to multi-ton blocks…

10 Terrible Tips for Longer Battery Life

Nowadays, everything comes with a rechargeable battery, but who knew that getting long battery life could get soooo confusing? Here are 10 expert-backed tips to keep you from running low on the juice: » 11/07/09 2:00am 11/07/09 2:00am