In different solar panel 12 v tests can be read that a solar panel 12 v with 150 wp is optimally suited to take over the entire power supply in a motorhome.
Different 12v solar panel test.
To test a 12v panel meters should always be set to the dc voltage area which usually identified by the symbol below.
As most solar panels are 12 volts the solar panel test methods are basically the same.
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.
You want to choose a voltage range capable of displaying the maximum possible voltage of the panel in open circuit that is when not connected to the battery or charge controller.
Thanks to its folding design it takes up little space when closed and is easy to move.
An 12 v solar panel with 76 wp on the other hand can mainly be used for seasonal use.
Set the meter to above 200 vcd to ensure you get the most accurate reading possible.
This article describes how to test a small 12 v solar power system.
I have a dual battery system in my vehicle and solar panels for camping.
Ensure that you connect the black alligator clips to the negative side while the red ones to the positive side and that the multimeter is on.