Disabling Touchscreens and Battery Life

Been searching around and there's not much discussion on this. I have a touch-screen enabled laptop with an option to disable the touch screen in BIOS. Will disabling touch save me a decent amount of battery? Various comments online report a 20% increase, or 1-2 hr increase in battery life. There's not much of a systematic study...was wondering if you had any thoughts.

This was discussed here...

Disabling Touchscreens and Battery Life

Disabling Touchscreens and Battery Life