How to automatically disable Aero when on battery power

So I want to juice the maximum amount of battery life from my laptop while running on battery.

By default windows 7 (ultimate x64) does disable Aero glass and dims the brightness and all when its on power saver mode while running on battery.
However what it doesn't disable the smooth maximizing and minimizing, aero peek etc...

Basically I just want it to default to windows 7 basic theme - the one without aero so i get the maximum possible battery life.

Is there a way to do this automatically, instead of manually adjusting every time?

Sorry Buddy, I don't think so. What you see in Power Options is pretty much all you get.

~JK

Well that sucks

btw is there a third party alternative?

Yes, I belive there is.

http://www.betterthaneveryone.com/code/VistaLaptopBatterySaverApp.zip

If the link doesn't work, Google for automatically disable aero when on battery power, and view the cached version of the 5th result.