Had the car for 2 days as of yesterday, and I noticed the voltometer was at 14.5. Isn't this really high? Is this normal? Also, when you store your car in the winter, do you really have to disconect the battery before you put a charge on it? I think I read in the manual you had to, but I've never done that on any of my other cars. The battery seems to be in a very inaccessable place!