Prilbeck,
I see an issue that I have not seen mentioned. Any Group 31 battery is going to be a 12V jar, so must be that you have 2 in parallel. They are not identical. If they came off the line sequentially, they are by now not identical. This means that if you leave them strapped together and to their devices, one will discharge more than the other and that will take both down if you leave them with no maintenance charge power.
That all being said, in the PD92XX, and the Bogart 2030, you have a good system. If you can leave the PD powered up, then leave everything alone. As said, in the spring you might need a little water. If you can't leave the PD powered up or there is a good chance it may not be for more than a week, disconnect both from the external connections and from each other. That last is essential.
Matt
