Anne & Bob:
After I had my "aha" moment and found those running board lights on at night, I have not had a problem. If you turn that dial switch down to nothing then the running board lights stay on about 5 seconds. I have found that I can leave the mh stored in the garage all summer without a start problem. In the winter, it is a different story. I can go about 6 weeks before she won't start. The colder weather makes the batteries die faster. One last thing to do is check to see if you have a dead cell in your battery with the tester. With the crappy batteries being made today (in China) they tend to have quality control issues.
Happy camping.
DJM