Click "Start" > All programs > Samsung > Battery Life Extender > Battery Life Extender . Click "yes" if prompted. When the program launches you should have the option to go back and forth between 100 and 80% on your battery.
Hope this is what you were looking for.
While this would have worked like a charm, after bringing my computer back to the store where it was purchased, they had done a format/reinstall of my OS... they failed to put back the samsung Battery Life Extender program.... after finding this post I went
to get the program and like magic... I was then able to change that stupid setting for the battery. THANK YOU SOO MUCH !!!!!! <3