Thanks for the replies! When you leave the battery disconnected where do you guys store the battery.
Also how do you make sure that you do not lose the settings (presets/clock) when you disconnect and reconnect the battery later. Is it possible to not lose the settings when you do not have a trickle charger.
GerryAz - No I did not leave the car plugged in or had anything connected to the OBDII port.