my dad pulled the car out of the driveway this morning and parked it up on the street, he didnt leave anything switched on,
an hour later when i went to start the car, it wouldnt start, as if the battery was flat, i then got a neighboor to jump start it. i then drove it for 25 mins, parked it up on a hill and went to see a mate for an hour and a half, when i went back to the car, i tried to start it and it was as if the battery was flat again, i had the battery tested and its fine apparantly.
i then drove for about 20 mins back home, parked it up and went back an hour later, it started, but i had to nip back in for something, when i came back out i tried to start it again and it wouldnt start, as if the battery was flat, i've just had to have it jump started again, i've tried a voltmeter when the car is running and battery shows 13.59/13.60 volts.
does anyone know whats wrong with it? what should i do?? how can i fix this??