I've had some issues with my battery not getting charged when I'm driving...it's pretty strange because sometimes it will charge, but then sometimes it just won't and the battery slowly drains until I'm stuck getting a jump (most of the time it's so dead I have to roll start...) After trying everything I had it in at ford and they fixed it saying it was a bad ground. It was fixed for the whole summer and now it started doing the same thing again...Anybody have any ideas/tips? I've got a voltmeter and messed with it a bit, but it's not digital so it's kind of hard to get an idea of what power is coming off the battery...