My Honda Civic 1.8 EX new December 2007 and covered 12000 miles has in the passed three months failed to start after 5 days of not being used. Local Dealership advise no excessive voltage leakage during periods of non use and battery in working order. AA say drain is over the norm and battery u/s. Will shortly not be using the car again for two weeks and fear that I shall be unable to start it again. Anyone with similar problems?