Here is a tagged and titled M1102 overlanding trailer.  It’s outfitted to go off the grid for several weeks at a time. 

Power
It has 400AH of batteries with 4 100W solar panels with a solar charge controller, amp meter displays remaining power, 3000W pure sine wave inverter controls charging via shore power, also supplies 120V to 2 separate outlets. It has 12v throughout, including usb and cig outlets. Dimmable led lights are put in key areas to provide ample lighting. All electronics components are Renogy. Has GPS tracker.

H2O
100 gallon freshwater tank, water pump, Joolca hot tap, front and side connections allow for filling from shore or natural bodies & a pressurized water hose. Take hot showers & wash dishes with the sink or shower head & shower stall.

Gear
270 awning, smittybilt gen 2 xl RTT with added awning.

Trailer
12v conversion, 37s, tagged and titled!!!  Side storage!