"The Matrix is a computer-generated dream world built to keep us under control in order to change a human being into this." The Matrix (1999) While we are still a long way from rogue artificial intelligence enslaving the human race (at least I hope we are), the necessity for batteries remains largely the same. Batteries power most things in our lives. Phones, watches, cars, tools- all of these things are powered in some part by batteries. Naturally, with so many different devices and applications, there must be many different types of batteries as well. So how do we go about deciding which kind is right…