Originally Posted by MaineGuide
So you’re saying that all I need to do ito avoid the clips is create an external connection on the battery box and plug in the portable unit to operate along side the factory unit
You want the external port on the trailer (where you plug your external panel in) to be as close to your trailer’s existing solar controller as possible (not necessarily as close to the battery as possible).
To install this in parallel with the roof panel you simply attach the leads from the external port to the same input terminals as the roof panel.
Three things to be mindful of:
1. Make absolutely sure that you get the polarity from the portable panel, through the port, and to the controller, correct. Double, or even triple check this.
2. If your portable has a built in controller, you should bypass this.
3. Make sure you have the correct plug on the end of your portable’s cable to fit whatever solar port you choose. The SAE/Zamp are the most commonly used, but there are a number of other options out there.