BatteryCare is a free utility that helps you keep your laptop battery topped off and ready to roll. It's more accurate than the typical battery meter, for starters, measuring battery discharge cycles instead of stored energy. BatteryCare's documentation and Web site offer a lot of information about how laptop batteries work as well as how to get the most out of your device's battery. It's fascinating, but we'll cut to the chase and simply note that there's a lot you can do to maximize your battery's life and performance, starting with downloading this freeware. We installed BatteryCare in a Netbook running 32-bit Windows 7 Home Premium, but it's fully compatible with Windows 8, too.