solar panel

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I use a Go Power 120watt Folding kit Amazon Link: http://a.co/2LhCKC2 wich fits nicely under the bed(through the under mattress storage hatch).
120Watts is more than enough for a small trailer like this with LED lighting.. with my usage I use 2500Watts per week

Here is a breakdown of my daily usage(on a 2015 rpod 171):

Appliance            Time Drawing Power(Hours)   Power Draw(Watts)  Total Power Draw(daily)
-------------------------------------------------------------------------------------------
Furnace              2                           30                 60
LED Light            6                           4                  24
Propane Fridge       24                          0.15               3.6
Carbon Monoxide Det. 24                          0.10               2.4
Bathroom Fan         1                           10                 10
Water Pump           0.5                         60                 30
Cell-Phone Chargers  3                           5                  15
Television           1                           45                 45
Stereo               8                           18                 144
which works out to 334watts per day of use, no matter where you live the BEST you will ever do for peak sunlight hours is 5.5hours per day so with a 120watt panel you can make 660 Watts per day assuming ideal conditions(search google for a Peak Solar Hours map)

Where I live(vancouver BC) I get 4 peak sunlight hours a day in the summer(only 1.5 in winter) so that means my 120watt will make 480Watts a day so I have some overhead to work with(wife will probably leave some lights on etc lol). so I can go all summer without charging from the Tow Vehicle.

Keep in mind when calculating your power usage even though you turn the furnace on for 10hours a day it does not draw power for 10hours a day.. in my area it would draw power for less than 2(I assumed 2)

Also worth noting is my 2x6v 210Ah Batteries would allow me to go 4.5 days without charging them at all(draining down to 40%)

as far as my zamp connector goes I use it with an adapter I made to plug in the Go Power Solar panel... be careful with this as it plugs directly to the battery(mine didn't have a fuse from factory) and the zamp connectors while an industry standard connector it is wired backwards from most other connectors of its type( i just flipped the wires at the battery)

I also use the zamp connector as an outside 12v hookup for running an LED lantern at night.

So to be clear.. on my 2015 rpod 171 the Zamp connector expects a REGULATED input