[marinercox]

My wife's 2002 PT Cruiser's battery used to get low if the car was not driven for a week or so. So did my 1994 Miata. This is not uncommon for a lot of cars because of the age and condition of the battery and the battery draw imposed by units that consume electricity when the ignition is off, such as car alarms, radios, control unit memories, etc. I cured the problem when I replaced the batteries in the PT and Miata. I installed a trickle charger harness on the battery terminals and plug the cars in to the minicharger when they are not in use. It takes a couple of minutes; the minicharger cost $19.95 at Wally World and my batteries are always fully charged. You can use a low amp solor charger as well -- check Northern Tools.