Quiet Generator fot 23ft TT

Hey guys I just wanted to chime in on the boliy. I have a 38 foot freedom elite(keystone) with two airs. I bought the boliy because of the power rating, pure sine wave, the weight and the remote start. The remote start is great when the battery is charged. I have a battery tender with extra connectors so I soldered an extension from the battery out of the case so I could hook up the tender. My problem is my battery is now dead because I forgot to turn off the remote start button on the generator. I tried hooking up a slightly larger version of the exiting battery through the battery minder connection but it doesn't seem to work unlike in a car. The pull start is easy so I am not worried at the moment. The problem I have is access to the battery. The 5th wheel came generator ready so to speak. I set up the boliy as a permanent install where an Onan would typically go. I made an exhaust pipe out of conduit and use one of those glass pack stinger mufflers. The system is very quite. When the generator starts it turns on 250 cfm ac fan which pulls air in and out through holes next to the generator. On the right side of the generator are two large intake and exhaust pipes 3 to 4 inch diameter. The intake covers the out going exhaust pipe. I also have 4 6 volt deep cycle batteries in the same compartment protected by a metal shield. The batteries stay reasonably cool. The system has worked great for three trips so far.