Re the anderson plug on the front, if you measure the voltage and find it is at battery voltage that shows it is directly connected to the battery. To connect a portable panel you will need a solar regulator/controller, mppt types are best. I prefer victron gear, well made well priced and very configurable and reliable and you can monitor all devices from one app.
If you add a dc-dc charger on the cable coming from the car alternator you will need another anderson plug or similar connected to the battery for the portable panel and regulator.
You can have solar via regulator (eg 60 watts on roof) and alternator dc-dc charge connected to the battery at the same time. The agm battery will control the voltages and draw what it needs and slow down when full.
hope that helps,
Ray
If you add a dc-dc charger on the cable coming from the car alternator you will need another anderson plug or similar connected to the battery for the portable panel and regulator.
You can have solar via regulator (eg 60 watts on roof) and alternator dc-dc charge connected to the battery at the same time. The agm battery will control the voltages and draw what it needs and slow down when full.
hope that helps,
Ray

see the facebook page instead
