Currently plugged into my laptop: * Logitech receiver for my (wireless trackball) mouse. * Speakers * Power * USB hub When I'm on the go, replace speakers wit

Currently plugged into my laptop: * Logitech receiver for my (wireless trackball) mouse. * Speakers * Power * USB hub When I'm on the go, replace speakers with headphones, and USB hub with a flash drive. Not to mention that, if they see battery life so important, why does this have so disappointing battery life?