After having yet another dead battery situation, this time not a home, I decided to swap the 12v battery. Fortunately I have been carrying a 7 ah SLA and just plugged it in parallel with the 12v battery and everything started right up.
After looking at the small battery in the Leaf it sure looked like a larger battery would fit in that space. I did some measuring and found the space matched the Rogue. So I went ahead and bought a tray for the Rogue, part number 24428-56L00 and a battery hold down for the Rogue as well, part number 244204M800 and a 34N battery, almost twice the capacity of the stock existing battery. I just took the existing battery out, pulled the smaller tray and dropped the larger tray in and swapped out the battery hold down and tightened everything down. The negative terminal was close, but made it by angling the lead a bit, the positive side was fine as it was. I am quite sure that is the rogue tray base in the car
I know the 11&12's are laid out differently under the hood, not sure what might fit in there. But this worked well for my 13.
So now I have a larger battery in there. I know it doesn't fix the issue of something draining it, but at least it should last longer under whatever that load is.