How To Test A 12v Solar Panel

Testing the 12 volt solar panel.

How to test a 12v solar panel.

Then touch the multi meter s black negative lead to your solar panel s negative wire. Touch the multi meter s red positive lead to your solar panel s positive wire. If the solar panel is used the reading might be lower. Angle the solar panel towards the sun.

The system i tested includes two 120 w solar panels in parallel a pulse width modulation pwm charge controller and 225 ah wet deep cycle battery. Connect the positive lead of the multimeter to the positive wire or terminal of the solar panel and the negative lead of the multimeter to the negative wire or terminal of the solar panel. You will want to ensure that you place the positive to positive and negative to negative when attaching your multimeter to the connection on the back of your solar panel. We ll be using a multi meter which is the tool most people would own or have access to through their local electrical shop.

Disconnect the alligator clips only after you have switched off the multimeter. This article describes how to test a small 12 v solar power system. As most solar panels are 12 volts the solar panel test methods are basically the same. To test solar panel voltage output put your solar panel in direct sunlight set your multi meter to the volts setting and.

Testing solar panels for amps to test solar panel amperage output put your solar panel in direct sunlight set your multi meter to the dc amps setting. Results typical 12v nominal panel. To test a 12v panel meters should always be set to the dc voltage area which usually identified by the symbol below. Measure the current by connecting the ve lead on the voltmeter to the ve on the panel and the ve from the voltmeter to the ve on the panel.

Set the meter to above 200 vcd to ensure you get the most accurate reading possible. This is the most common volts rated for solar panels therefore the testing methods will be typically similar. I have a dual battery system in my vehicle and solar panels for camping. This is quite usual.

Ensure that the multimeter is set at 10a at least to start with. The multimeter will now show the open circuit voltage of the solar panel.