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