I have an iPhone 3GS jailbroken with iOS 5.0.1, and I noticed that when my iPhone has an empty battery and I try to turn it on, it does not show the red battery connect to power icon. Instead, the screen just glows, but no icon. It just stays on like that and doesn't turn off. Is this normal? My phone works fine after I plug it in and charge it. Just wondering where the connect to power icon went.