Some of the regulars here will recall my issues with the stop/start feature on my Jeep (where the engine will shut off at stop signs/lights and restart when the brake is released). Well, I have it all figured out now.
Per the advice of several posters here and after a discussion with one of my neighbors I purchased a battery tender/manager. This will recharge the battery and when the charge is full will add a charge only when the battery starts to lose it’s charge. I hooked it up and low and behold (or high and discard, as you will) it worked.
So here is the story: I hooked it up at about 2:30 yesterday afternoon and it indicator light showed it was charging. I checked again throughout the day and it was still charging when I went to bed. I checked when I got up this morning a little before 6:00 and it was still charging. I reread the instructions and noted you are supposed to shut off everything that pulls juice from the battery. I park in a closed and fairly secure garage but my habit is to set the alarm when I’m done with my car for the day. So I shut off the alarm. It still showed it was charging. I walked from the garage to the den and then back again and it showed the battery was charged. Disconnected the manager and drove the car this morning and the stop/start is back. So here’s the takeaway: the alarm draws enough juice that the manager was barely making headway - so I will no longer set the alarm when the car is in the garage. In addition, during talks with the dealer they indicated the communication portal (UConnect for FCA, Sync for Ford, OnStar for GM) will talk to your car, even when it’s off, which will further draw some juice from the battery.