how will i know when the battery is getting weak and near death???
 

Is there a way to tell....i just bought a 2006 mariner with 127k on the clock....(havent driven it yet...i pick it up tuesday)....got it for 6800....(opinions on good deal or not...to me its a great deal....kbb value private party in FAIR condition was around 8600 or so....in good it was like 10100 and in excellent near 11 something....) anyhow....the person i bought it from says it still gets around 30 mpg and that the battery is fine....
what does that gauge in the left on dash mean....it has something like charge (battery ) etc....
just saw a nice article on these cars....http://www.autoblog.com/2007/04/04/f...new-york-stre/