Measuring the capacity of the solar panel
An ordinary multimeter can be used to measure the solar panel
What are Solar Panel (2019)
There are two different readings that must be checked to make sure that the solar panels are working properly and see how much energy they generate.
  1. Volt measurement 
    - Solar panels are completely separated from the battery and charging regulator 
    - the board is directed towards the sun 
    - ensuring that the aviometer is set to measure the voltage between the positive and negative electrode of the panels
  2. Isc measurement The same steps are done, but the avmeter is set to measure current
The capacity of the board can simply be measured after reading these values ​​using the following equation
 
Power = Voltage * Amps 

If the voltage reading is 37.5 and ampere 6, 

the board capacity = 37.5 * 6 = 225 watts 

The plate capacity is determined based on a laboratory test under grade Temperature of 25 ° C and special conditions in the laboratory 
so it is impossible to get the same value of the ability written on the board when measuring voltage and current in the previous way. 

But it is possible to know the efficiency of the board to be tested compared to another board to be tested at the same time and place 
and approximate The plate must not be less than 80% of the ability written on it, when the test in the middle of the day, Sun rays
This simple test can also be used to measure and identify any faulty plate within a large package


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