How To Connect 2 Batteries To A Solar Panel

Running the batteries in parallel won t work because of the distance between the two batteries.

How to connect 2 batteries to a solar panel.

Divide the wattage of the solar panel by the voltage of the battery to get the number of amps your charge connector needs to handle. To power a dual battery system you ll need to connect the panels in parallel. Following this example where there are two 12v 200ah batteries connected in series we will have a total voltage of 24v volts and an unchanged capacity of 200ah ampere hour. Notice the two discrete battery connection points on both sides of the solar array connection on the back of the above controller.

Connecting two solar panels in parallel. Connect the negatives to the negatives and positives to the positives. To wire two or more solar panels and batteries in parallel simply connect the positive terminal of solar panel or battery to the positive terminal of solar panel or battery and vise versa respectively as shown in the fig below. I have a single 50watt panel with a 10 amp controller.

My question for everyone is can i run two lines from the battery connections. Connect the negative wires together in the same fashion and the wires off the last panel in the parallel circuit are connected to the battery. Then run wires from the battery to the charge connector making sure to match the positive and negative poles. The two banks are charge separately using the same controller and solar panels.

Same applies to two or more solar panels. The same voltage of 13 8 from the charge controller can charge all the battery connected in parallel. One set to connect to the trolling motor batter on the front of the boat and one set for the starting battery. Wire solar panels in parallel by connecting the positive wire of the first solar panel to the positive terminal of the second panel and so on.

There are a few charge controllers that have now added the default option of having two battery banks. To charge a battery with a solar panel connect a charge connector to the solar panel.