Okay Stu, sounds like you have a draw problem and not a charging issue, correct? Some of these newer vehicles have some draws happening, like my 2000 3.2 intrepid had, that I drove for 6 years to and from work everyday. Never sat more than a day or two and started no matter the weather. Sold it to a co-worker, and his wife was the pilot of the thing, and if it sat for a week or two it was about dead. Co-worker did not mind putting a trickle charger on it about everyday. I told him that ain't right, and I'd help him fix it right, and he said he was fine with it.