Laptop Magazine has a short list of tips for increasing the life of your laptop battery. You may know some of them, but maybe not all of them. Like, did you know that you can increase battery runtime by some 10 minutes per level of brightness you dim the screen? Or that you should disable the Wi-Fi radio, Ethernet adapter, Infrared transceiver, Bluetooth module, and other devices you’re not using, in the Device Manager (Windows)?
Hardware Beyond the Hype