Hi, past few days I have gone to start the car and it is hesitant to start, it is as if the battery is flat, I have checked the battery with a multimeter and it's reading 12.9V+ and checked it with the car revving and it's 14.6v+. I disconnected the battery leads and they were a bit dirty so cleaned them and checked the earths and it seemed to be ok, however today it would not start at all, it sounds as if the battery is flat but is, as I said 12+, when I switched lights on to try it they did go dim and the voltage went down to 9.5v. Is the battery just tired or is there some other underlying problem? All help appreciated
Cheers
Cheers