Is there any program that can be a battery monitor as well as add battery and power use tweaking to a laptop? So I could clock down my processor to save on battery life. That's basically it. I can adjust the screens brightness, but that doesn't make any significant changes to battery life. I know I could disable wireless and that might help some. But aside from that, the processor is the 2nd largest power consuming piece for a laptop. My laptop is a Compaq Presario 2100 with an AMD Athlon XP 2400 Mobile processor.