Really newbie WinMo Question

[fdtech]

Ok, Im prettynew to Windows Mobile and Im loving it so far. Quick question, on the status bar, next to the battery indicator there is the application switcher/closer icon with the dropdown arrow. When you press that, theres a pictue of a chip with a percentage next to it. What exactly is that percentage indicating? Do higher/lower percentages take a toll on battery life and general performance? Ivetried searching for this but have come up empty. Any answers would be great!

Thanks