This problem has been on and off for 2 years now and it's driving me nuts. When the car is cranked first thing in the morning, it turns over just fine and starts on first crank. If I drive it to work (2 min) and start it say 3hrs later, all is fine too. However, if I drive it for 30 mins, turn it off and pop into the dairy, when I try to start it again it sounds like a flat battery and cranks very slowly most often tripping the computer and safety mode. The longer I drive, the worse the problems seems to be. Drove 4hrs 2 weeks ago and the problem plagued me all weekend but then when I got back, Monday it started just fine. Today, it started fine in the morning, fine at the coffee shop 5 minutes later but after driving 20mins North and parking for 10mins, it almost did not start and tripped into safety mode. The battery gauge on the dash shows the battery is charging (sometimes) but every now and then, it does read only 12V but from reading the forums, this is normal? (electronic charge control). The battery was replaced <2yrs ago for one with the right CCA rating and was recently checked with 4 different meters proving it was providing enough cranking amps. The car has been to Holden twice and another garage once and despite being told all manner of stories, the problem still exists. Any advise would be appreciated.