Always connect your solar panels via a regulator.
Direct connection solar panel to battery.
The battery is connected to the battery terminals of the charge controller same like pv panel wiring i e.
These can be an inverter 12 volts dc box or both.
Positive terminal of battery is connected to the positive terminal of charge controller and vice versa for negative terminals.
Then connect the regulator to the 12 volt battery.
How to connect a solar panel to a 12v battery.
Connect the positive wire from the solar panel to a battery cable with a fusible link between the battery and the solar panel.
Charge your 12v battery from a solar panel and have your backup powered.
If both panels are rated at the same maximum voltage then you ll get maximum output.
Connect the negatives to the negatives and positives to the positives.
Same applies to two or more solar panels.
Connecting two solar panels in parallel.
In the event you have more than one battery connect them in parallel.
Wiring the loads the following step is to wire the loads.
After you estimate your daily use set up the battery that you need.
This will help prevent a fire or battery explosion in the event of a short in the wiring.
To power a dual battery system you ll need to connect the panels in parallel.