Hello, The green LED lights on my iBook battery lights are not lit while running on battery power, but will light while charging. When I press the little button on the battery (what does that do, by the way?) it will light all four LEDs for a few seconds, and then go dark again. Is this normal functioning, and if so, why have the battery indicator and not have it active while on battery power? Is there a way to turn the LED lights on or off? Thanks!