[The Bus Crew]

I have experienced the issue with leaving batteries merged while plugged into a shoreline. My house batteries died when it was around 95 degrees and then they drained my start batteries. I had to pull the start batteries to take them to a shop to get charged just to start coach. Also had to replace house batteries which was bad timing as I knew they were getting old and was looking into lithium but when this happened I needed the batteries right then so I put lead acid back in.

Part of my plan is to add a battery tender from house to start batteries as Tom and several others have suggested now.

But I no longer leave merge on except for a day or two at a time.