is a trickle charger what I need?

[ttomas]

I have a mc9 NJT with the split doors. Until I change the door to a single, I have installed an air tank and separate ac compressor tied into the door air dump switch, with a valve blocking the rest of the coach air system. (my wife can not manually open the door.) It works great supplying a constant source of air to the door without cranking up the engine.
    The only drawback I can see is that I have to keep the battery switch on to work the door.
     My question is twofold: with long term parking and using the bus daily, 6 months, what would be a good way to keep the batteries up while parked?
AND, if I use a 120 volt ac to 24 dc converter, how large would it need to be.(I am clueless as to whether or not this will work)
   As always, any advice is appreciated. Thanks,  Tomas

[Kristinsgrandpa]

I'm kinda' critical about people always trying to change peoples minds about how they are wanting to do something, that said I'd like to make a suggestion.

Could you replace the solenoid with a manual valve and eliminate the battery drain.

Ed

[trailblazer2]

I had the same problem with my NJT 9B. I had a lock hasp installed at the bottom of the door ,and then I pad locked it. I also had a key made for the door (towards the back of the coach)I then decided to take the two doors and make one out of them. I wished I had done this earlier,this is a whole lot easier than tolerating those bifolds. Material cost is about $120.00,and labor is basically welding ,and riveting.