Q: I have a 2008 Honda Civic that I have driven once a week for the last five years. Will the life of the battery be extended due to the limited use or is the determining factor the actual age of the battery with all other conditions being equal? Is there a more relevant factor? B.H., Center Valley, Pennsylvania A: A car battery typically lasts 3 to 5 years. Lack of use won’t save the battery, just like it won’t save batteries in a flashlight you haven’t used. Extreme cold in the winter or heat in the summer take a toll. If the battery terminals are corroded, the charging system may not be abl…