Routing Solar Wires Through Fridge Vent
Hi all! I am thinking about installing a solar system on my 2012 Jayco X19H. Have been reading a lot in the last few days, and I think that I would like to run the wiring through the Fridge Vent. ...
Forum Discussion
Install a switch on one of the panel to controller wires. Your controller instructions will likely say not to have the panel connected when the battery is not. So if you are changing out your battery you need to disconnect the panel from the controller first.
With PWM controllers, your panel will be at the battery voltage of 12-15 volts, so wire gauge for that. If you have an MPPT "it depends"
The array might be 24v (with voltage around 30 volts) and the battery is 12v, so you can do thin wires array to controller, but still need the fatter wire from controller to battery since that is at the 12-15 volt range
If you have two or three 100w "12v" panels there is no advantage in going MPPT over PWM. If you get one bigger 24v panel of say 250w, then you need the MPPT to run it, since PWM will not step down("buck convert" that down to your 12v battery system voltage. That one 250w panel is probably way cheaper than two or three 100w panels.
With PWM controllers, your panel will be at the battery voltage of 12-15 volts, so wire gauge for that. If you have an MPPT "it depends"
The array might be 24v (with voltage around 30 volts) and the battery is 12v, so you can do thin wires array to controller, but still need the fatter wire from controller to battery since that is at the 12-15 volt range
If you have two or three 100w "12v" panels there is no advantage in going MPPT over PWM. If you get one bigger 24v panel of say 250w, then you need the MPPT to run it, since PWM will not step down("buck convert" that down to your 12v battery system voltage. That one 250w panel is probably way cheaper than two or three 100w panels.
