Frag is right about the 6 year old battery. I am kind of old school and still use Sears for my basic automotive stuff like tires and batteries. They have a great warranty on their batteries and are easy to find in most cities if you travel. I have also been told that in extremly cold weather to turn on your headlights for about 30 seconds then shut them off prior to cranking over your engine. It has to do with battery temp.