You should be extremally care full with the batteries in an outside container. Lithium is dangerous to charge below freezing. Inside you RV would be much better. Love to see how your plan develops.
As I have suggested before, an option for mounting a Victron MPPT charge controller is as follows. IF there is enough depth behind the panel where the GoPower controller is mounted to fit the Victron behind the panel you can do this. 1) Remove the GoPower controller and connect the existing wires to the Victron. 2) Buy a piece of polycarbonate or acrylic big enough to cover the hole where the GoPower was. 3) Drill mounting holes for the Victron MPPT in the polycarbonate/acrylic panel plus holes to screw it to the existing wall panel 4) Paint the back surface of the polycarbonate/acrylic panel the color of your choice using your preferred spray paint. 5) Mount the Victron MPPT on the back (painted side) of the polycarbonate/acrylic panel and then screw the new panel to the existing wall panel. The Victron MPPT will be inside the wall cavity and invisible. All you will see is the shiny colored polycarbonate/acrylic panel. If you don't like the polycarbonate/acrylic panel, use a small piece of 1/8" plywood you can finish as you like.
I also have a 2205S and I am looking to upgrade solar and batteries (to lithium) as well. 420W panels are available in ~45V (short circuit current is ~10A and open circuit voltage is ~55V). The total wattage is 420W+420W = 840W. Putting two of these on the roof in series will double the voltage and keep the current (amperage) the same. The current on the solar panel side of the MPPT defines the size of the wire which an 8AWG wire at 10A can be up to 50 feet long. The current on the battery side of the MPPT is 840W / 12V = 70A. I am thinking of using a Victron 150/70 located very near the battery so the cables can be kept to a manageable size. The size of the panels is ~(81.8 ˣ 39.1 ˣ 1.38 in). I have not committed to this though.
Lose the GoPower, go with the Victron MPPT solar charge controller. I would put the effort into putting the Li's and charge controller in the pass through. The length of your solar panels wires will not make a difference. You will be at the max for your wire gauge with the extra panels. You don't want to go over 600Watts of panels with the factory wire. I would also be doing away with the paltry 1,000 watt inverter.....what a joke! , 2000 should be the factory standard.
You should be extremally care full with the batteries in an outside container. Lithium is dangerous to charge below freezing. Inside you RV would be much better. Love to see how your plan develops.
I already understand those scenarios. Thanks.
As I have suggested before, an option for mounting a Victron MPPT charge controller is as follows. IF there is enough depth behind the panel where the GoPower controller is mounted to fit the Victron behind the panel you can do this.
1) Remove the GoPower controller and connect the existing wires to the Victron.
2) Buy a piece of polycarbonate or acrylic big enough to cover the hole where the GoPower was.
3) Drill mounting holes for the Victron MPPT in the polycarbonate/acrylic panel plus holes to screw it to the existing wall panel
4) Paint the back surface of the polycarbonate/acrylic panel the color of your choice using your preferred spray paint.
5) Mount the Victron MPPT on the back (painted side) of the polycarbonate/acrylic panel and then screw the new panel to the existing wall panel. The Victron MPPT will be inside the wall cavity and invisible. All you will see is the shiny colored polycarbonate/acrylic panel.
If you don't like the polycarbonate/acrylic panel, use a small piece of 1/8" plywood you can finish as you like.
I remember.
I also have a 2205S and I am looking to upgrade solar and batteries (to lithium) as well. 420W panels are available in ~45V (short circuit current is ~10A and open circuit voltage is ~55V). The total wattage is 420W+420W = 840W. Putting two of these on the roof in series will double the voltage and keep the current (amperage) the same. The current on the solar panel side of the MPPT defines the size of the wire which an 8AWG wire at 10A can be up to 50 feet long. The current on the battery side of the MPPT is 840W / 12V = 70A. I am thinking of using a Victron 150/70 located very near the battery so the cables can be kept to a manageable size. The size of the panels is ~(81.8 ˣ 39.1 ˣ 1.38 in). I have not committed to this though.
You are quite ambitious. Congrats.
Lose the GoPower, go with the Victron MPPT solar charge controller. I would put the effort into putting the Li's and charge controller in the pass through.
The length of your solar panels wires will not make a difference. You will be at the max for your wire gauge with the extra panels. You don't want to go over 600Watts of panels with the factory wire.
I would also be doing away with the paltry 1,000 watt inverter.....what a joke! , 2000 should be the factory standard.
Place the panels so you can walk around up there
That's a great idea!