For example, connect solar panels with different voltages in series:
The first solar panel is 5V/3A, the second is 7V/3A, and the third is 9V/3A. When they are connected in series, the array produces 21V at 3A, or 63W of power. Again, the output current number will remain the same 3A as before, but the voltage output jumps to 21V (5+7+9).
Solar panels with different current and voltage are connected in series for example:
The first solar panel is 3V/1A, the second is 7V/3A, and the third is 9V/5A. When they are connected in series, the voltages of the individual solar panels will be added together as before, but this time The amount of current will be limited to the value of the lowest panel in the series, in this case 1A. The array would then generate 19V (3+7+9) at 1A, or only 19W out of a possible 69W, reducing the efficiency of the array. Connecting solar panels with different current ratings in series is only useful temporarily because the solar panel with the lowest current rating determines the current output of the entire array.
An example of parallel connection of solar panels with different current and voltage:
The first solar panel is 3V/1A, the second is 7V/3A and the third is 9V/5A. Here the currents in parallel add up to the same as before, but the voltage is adjusted to the lowest value, in this case is 3V. Solar panels must have the same output voltage to function in parallel. If one panel has a higher voltage, it will supply the load current to bring its output voltage down to the voltage of the lower voltage panel. The above is just a description of some changes in power, voltage, and current. In fact, there will be some problems in the safety of electricity use. Please test in a safe environment. If you want to know more about solar panels, please follow us.