These can be an inverter 12 volts dc box or both.
Direct connection solar panel to battery.
Then connect the regulator to the 12 volt battery.
If both panels are rated at the same maximum voltage then you ll get maximum output.
Same applies to two or more solar panels.
This will help prevent a fire or battery explosion in the event of a short in the wiring.
How to connect a solar panel to a 12v battery.
Charge your 12v battery from a solar panel and have your backup powered.
Always connect your solar panels via a regulator.
Positive terminal of battery is connected to the positive terminal of charge controller and vice versa for negative terminals.
To power a dual battery system you ll need to connect the panels in parallel.
Connect battery to charge controller in the first step you are going to wire the battery to a charge controller.
Connect the negatives to the negatives and positives to the positives.
Connect the negative wire of the solar panel to the negative terminal of the battery.
Wiring the loads the following step is to wire the loads.
The same voltage of 13 8 from the charge controller can charge all the battery connected in parallel.
Connect the positive wire from the solar panel to a battery cable with a fusible link between the battery and the solar panel.
The battery is connected to the battery terminals of the charge controller same like pv panel wiring i e.