I finally got around to being able to answer the question about the Mild2Wild manual exhaust control for V series exhaust draining the battery. These are measurements from my 2008. YMMV
It made no difference at any time what mode the system was left in at shut down.
There were 2 changes based on time. The first occurs about 2.25 minutes the next at about 4.5 minutes.
The initial current fluctuates between 4.5 and 5.5 amps.
After 4.5 minutes the current with the Mild2Wild installed drops to about 17mA with the Mild2Wild removed it is 10mA.
After 4 hours with the Mild2Wild installed the current was still at 17mA.
Significant? IMHO, I don't think so. Given that my battery is rated at 48Ah and reducing it by 4 times the initial load to be conservative drops it to 47Ah, the reserve time with it installed is 2764 hours or 115 days. Without it connected 4700 hours or 195 days.
I don't for a second think that a battery will last that long so there must be more factors like periodically "waking up" or ??. In any case, I don't think the additional 7mA drain is much to worry about.
I did find it interesting that if I left the trunk open the load was 100mA after 5 minutes. This was with the trunk lights were off. I've got no explanation for that other than the system keeps the trunk/roof control module awake if the trunk is open. It may have gone down after more time.
HTH
It made no difference at any time what mode the system was left in at shut down.
There were 2 changes based on time. The first occurs about 2.25 minutes the next at about 4.5 minutes.
The initial current fluctuates between 4.5 and 5.5 amps.
After 4.5 minutes the current with the Mild2Wild installed drops to about 17mA with the Mild2Wild removed it is 10mA.
After 4 hours with the Mild2Wild installed the current was still at 17mA.
Significant? IMHO, I don't think so. Given that my battery is rated at 48Ah and reducing it by 4 times the initial load to be conservative drops it to 47Ah, the reserve time with it installed is 2764 hours or 115 days. Without it connected 4700 hours or 195 days.
I don't for a second think that a battery will last that long so there must be more factors like periodically "waking up" or ??. In any case, I don't think the additional 7mA drain is much to worry about.
I did find it interesting that if I left the trunk open the load was 100mA after 5 minutes. This was with the trunk lights were off. I've got no explanation for that other than the system keeps the trunk/roof control module awake if the trunk is open. It may have gone down after more time.
HTH