I have a truck camper that has a factory installed 95 watt solar panel, hooked up through a 30 amp controller to my batteries.
I recently bought a renogy 100 watt folding suitcase unit which incorporates a controller. I chose that over an add-on rooftop panel so I could tilt and move it as needed to maximize output.
It would be easy for me to run a cable from the portable suitcase unit with controller and hook up directly to my batteries. Not so easy to go around the batteries and and the suitcase controller and splice into the down-leads from the existing panel.
My question is… would it work to hook up the suitcase/controller directly to the battery and not disconnect the existing panel/controller system without damaging either controller? I would think they would act independently , but not sure.
I appreciate any thought on this.