How To Connect A Second Solar Panel

For example our 115w sunpower solar blanket has the following ratings.

How to connect a second solar panel. If we have two solar panels with the same voltage but different wattage there is no problem. Connecting solar panels in series. To do this we connect the positive side of the first panel to the negative side of the second panel. Continuing up to the top left panel there will be 12 volts in and coming out with 18 volts.

They can be wired in parallel. So a charge controller of at least 165 watts capacity will do the job. Maximum rated current 5 8a. If your existing solar panel is 100 watts and you want to add a 50 watt solar panel you will need a charge controller that can handle 150 watts plus 10.

Join me on my adventures. Maximum rated voltage 19 8v. Connecting two solar panels in parallel. I am living on the road in my self built camper van.

Add together the wattage of the two solar panels. Your charge controller has to be able to handle at least 10 more than this. The series connection is done by wiring the positive terminal of each panel to the negative terminal of the next panel a connection similar to the ones of the christmas lights until the final panel is connected to the charge controller or inverter. On the other hand if our two solar panels have both different wattage and different voltage then parallel connection is not possible since the panel with the lowest voltage would behave like a load and would begin to absorb current instead of producing it with the.

There will now be 12 volts coming out of this second panel. If both panels are rated at the same maximum voltage then you ll get maximum output.