Connect 2 Portable Solar Panels Together

The rule of thumb when connecting solar panels directly to a battery is never connect more than c 10 watts where c is the capacity of your battery.

Connect 2 portable solar panels together.

That is a parallel connection. 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. Simply put parallel is the same as when you are trying to jump start a car positive to positive negative to negative. Connect the negatives to the negatives and positives to the positives.

Connecting two solar panels in parallel. If both panels are rated at the same maximum voltage then you ll get maximum output. Maximum rated current 5 8a. The idea is to establish strings series connection of two or more panels and connect them in parallel with other strings creating arrays of strings.

For example a 110ah battery should never be connected to a panel more than 11w without a solar controller and if you are using a solar controller you do not need a blocking diode. Connecting multiple solar panels in parallel refers to 2 or more solar panels of the same wattage being connected positive to positive negative to negative. This allows to obtain the advantages of the series connection lower electrical losses and lower costs and the benefits of the parallel connection reliability. If we have two solar panels with same voltage and power the connection will be very simple.

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