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.
How to connect 2 batteries to a solar panel. I have a single 50watt panel with a 10 amp controller. In the event you have more than one battery connect them in parallel. To charge a battery with a solar panel connect a charge connector to the solar panel. There are a few charge controllers that have now added the default option of having two battery banks.
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. To power a dual battery system you ll need to connect the panels in parallel. Connecting two solar panels in parallel. The two banks are charge separately using the same controller and solar panels.
Running the batteries in parallel won t work because of the distance between the two batteries. Same applies to two or more solar panels. Connect the negatives to the negatives and positives to the positives. 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.
Notice the two discrete battery connection points on both sides of the solar array connection on the back of the above controller. My question for everyone is can i run two lines from the battery connections. 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. 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.
One set to connect to the trolling motor batter on the front of the boat and one set for the starting battery. Then run wires from the battery to the charge connector making sure to match the positive and negative poles.