Looks like my unit is no longer charging. When I plug in the 30 pin I get a pop-up stating "Battery Critically Low - Disable all apps to conserve battery." I get the "Lightning Bolt" icon over the battery icong stating that it is charging, or powered, but it will not charge the battery.
My 30 pin cable is a bit worn at the connection. Maybe this is the issue? But it does stay powered when plugged in. Not sure if it is a battery, or just the cable.