As most solar panels are 12 volts the solar panel test methods are basically the same.
How to test a 12v solar panel.
Set the multimeter to 10 amps.
Then touch the multi meter s black negative lead to your solar panel s negative wire.
The system should be tested at maximum current with the solar array in direct.
Disconnect the positive cable that is.
Touch the multi meter s red positive lead to your solar panel s positive wire.
That being done connect the solar panel to the controller and also the controller to the solar batteries.
To test the regulator.
Make sure that the alligator clips are in the right port to find the.
Testing a small 12v solar power system step 1 wait for a clear sunny day.
The solar charge controller must not limit the current flow during testing.
Set the meter to above 200 vcd to ensure you get the most accurate reading possible.
Set the measurements of the multimeter to dc amps.
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.
To test solar panel voltage output put your solar panel in direct sunlight set your multi meter to the volts setting and.
Re connect the solar panel directly to the battery without the regulator.
Measure operating current as described above.
Disconnect the positive cable between the battery and the panel.
Step 2 measure state of charge.