This is a desperate call for help. My car is a Volvo S80 auto, bought secondhand with 60,000 miles registered, five years ago. It now registers 67,000 miles. I do infrequent low mileage. It has had two new batteries in the last three years. During the last four weeks the battery has been twice charged overnight by the garage, but after 10-12 ignition starts over three or four days and driving about 30 miles, then parked in the drive for a couple of days, the battery is completely flat. Over the last two years exhaustive checks have been made of charging to and leeching from the battery and nothing was found. No-one has any idea what is wrong.