I have a brand new Jayco Sprinter chassis Melbourne 24L. I live in Montana and have taken only one trip this Fall before winterizing the unit and putting it under a cover. It is plugged in to shore power - so it looks like my coach battery is being maintained. However, the so-called starter battery is losing power even though, to my knowledge, all electrical systems in the cab are turned off. To my surprise, after about only 2 weeks I went to start up the engine and the battery was completely dead. So I put a trickle charge (2 amp)on the engine battery & after about 3 days it was fully charged and started up. But then after about another 2 weeks I tried to start up the engine and the battery was completely dead again. My question: has anyone else had this same problem? If so, what's the fix? I'm thinking about leaving the 2AMP trickle charger connected. Is there any danger in doing that? Also, is there any way to charge the starter battery from the shore power? You would think that Jayco would have thought of that??!!