Roy. checking the calendar, hat battery wasn't down for more than a few days. We parked the trailer in the driveway for several days, plugged into shore power for about a week. There were things that needed to be taken out and cleaned and returned to the trailer, as always. The weather on our return wasn't very pleasant, single digit nights, so I winterized it but didn't put it into the RV barn until maybe a week before I discovered the battery was down. I keep the battery charged by plugging it in at the barn every week or two and have never had a problem. But you're right, it needs checking out. We have a campout scheduled in a couple weeks. Shore power will be available, but that's a good time for me to check the battery. It's a couple years old, and even though we don't boondock, if it shows any weakness I'll replace it then. Why wait? Well, we're lucky enough to live where others go to escape the city. So we're nowhere near a battery store. But we will be much closer at the RV park we're going to.