How To Test A 12 Volt Solar Panel

Step 3 measure current.

How to test a 12 volt 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. Second compare solar panel measurements versus rated values. Overall 12 per cent of the solar array voltage was lost and mostly in the solar cable. Alternatively you can use a multimeter or a voltmeter to find this out.

Angle the solar panel towards the sun. Next you need to set your digital multimeter to volt settings dc. Attach the meter to the positive and negative terminals on the solar panel and make sure the panel is properly exposed to sunlight. 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.

Voltages above 24 are 24 volt panels. For that reason it s most likely that a problem is caused by a defect in system. Set the meter to above 200 vcd to ensure you get the most accurate reading possible. As long as the amp meter is rated higher than the solar panel you will be able to measure the output effectively.

Troubleshooting a solar pv system. Results will vary depending on sun strength time of day angle of light and temperatu. To test a 12v panel meters should always be set to the dc voltage area which usually identified by the symbol below. Common issues are zero power and low voltage output.

Ensure that the multimeter is set to measure volts. How to test solar panels for volts using a digital multimeter the first thing to do is place your solar panel outside in direct sunlight. Quality solar panels are built and guaranteed to produce power for 25 years. Rarely have i seen more than 12 a from these chinese panels they perform like 110 w panels.

Below i will describe basic steps in troubleshooting a pv array. To ensure that you don t blow your device s fuse set the maximum amperage sensitivity to well above your expected reading. It is always mentioned in the panel specification label usually at the back of the solar panel. To test solar panel amperage output put your solar panel in direct sunlight set your multi meter to the dc amps setting.

As most solar panels are 12 volts the solar panel test methods are basically the same. Measure the voltage between the ve and ve terminals by connecting the negative contact from the voltmeter to the negative on the panel and the positive contact on the voltmeter to the positive on the panel. I have 15 m of 6 mm2 cable. Current was 13 per cent below expected 6 7 x 2 13 4 a.