Battery Drain

[JIMNINA]

We have a 2003 Gulf Stream Yellowstone that seems to have an electrical problem :( ?
I have installed all new batteries and after about 3 weeks all of the batteries are dead?
The last time I turned off the two disconnects in the bay. That didn't seem to help at all as the batteries are again dead.
As I was wondering why the batteries would be dead, since I thought turning off the disconnects would shut off the power from the batteries.
While looking around I saw that the Xantrex control panel still had lights on :?: :
Battery State = Full Charge
AC IN = Green Light
Fault - Red Light
Overtemp = Red Light
Charge = Green Light
No other lights are on.
In the bay on the drivers side there are two battery minders, both had green lights on.
I turned off the breakers on the inverter and still has power on the control panel inside the RV?
I know that there is another battery disconnect inside the RV, just inside the door. This disconnect doesn't seem to do anything either.

We have only owned the YellowStone for about 9 months and this is our first DP. Our other RV was a gas model and it sat for Months without the batteries going dead?

Thanks in advance for any assistance. I took pictures of all of the disconnects and panel, but couldn't find if it was okay to attach them.

[howermj]

I had the same problem with my 06 Tourmaster. Even with the internal chassis and house disconnects engaged, there are still parasite loads on the batteries (ECM, etc.). I ended up adding heavy duty manual battery isolators at the source so I can manually kill power to chassis, house, and inverter. (The TM has 3 battery banks.)

Problem solved. I can now store for months without worrying about excessive battery discharge.

You can accomplish the same thing without manual battery switches by simply disconnecting the lines at the positive terminal of each battery.