I faced the same issue with a New Aire that I had to store for two months in a barn with no power. Even with the battery disconnect switches turned off, there is still a draw on the batteries from all of the residual electronics in the coach that are still powered on. The only way to store the coach without having power is to physically disconnect the leads from the batteries terminals, both for the house and chassis. I did that and after 2 months the batteries were still at 12.6 volts when I returened. AGM batteries store very well with no load on them. A concern I had was what would the electronics do after the power was restored. I found that they all fired up perfectly with no memory loss for any of the setting that I had changed prior to the disconnect. If you didn't want to go through the trouble of disconnecting the batteries and had reliable power for a small battery charger, I would think an alternative would be to plug the coach into that power using a 15 amp adapter and set your coach imput on the Silver Leaf down to 15 amps. That should allow you to maintain the charge on all batteries with everything shut off. If there is a Wi-Fi available, you could monitor the battery status on the coach with Rozie. You would have to have someone available to re-store the electric connection in the event of a power failure. If no one was available to do that it would not do you a lot of good to monitor the coach and just be able to watch the batteries die. Safest bet is to disconnect the batteries; four nuts on the house side and two on the chassis, less than 20 minutues time.