The same voltage of 13 8 from the charge controller can charge all the battery connected in parallel.
Direct connection solar panel to battery.
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.
Charge your 12v battery from a solar panel and have your backup powered.
This will help prevent a fire or battery explosion in the event of a short in the wiring.
Connect the positive wire from the solar panel to a battery cable with a fusible link between the battery and the solar panel.
To power a dual battery system you ll need to connect the panels in parallel.
Always connect your solar panels via a regulator.
How to connect a solar panel to a 12v battery.
Connect the negative wire of the solar panel to the negative terminal of the battery.
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.
Wiring the loads the following step is to wire the loads.
If both panels are rated at the same maximum voltage then you ll get maximum output.
Then connect the regulator to the 12 volt battery.
Connect battery to charge controller in the first step you are going to wire the battery to a charge controller.