1) Depends on how you wire the panels.
If the panels will be wired to form a parallel circuit, then the final nominal voltage output will be 12 volts since they are all 12 volt panels. When panels are wired in parallel, the output voltage remains the same and is not additive. If all wired in parallel, the nominal output voltage for all panels will still be 12 volts at the input of the controller.
However, the amperage (current) becomes additive when connecting panels in parallel. The total current of the PV system must be less than the amp rating of the Charge Controller if all panels will be connected in parallel.
2) Yes, if the Controller is rated @ 10 amps, then 10 amps is the maximum amount of current that can be connected to it from the total strings of panels.
3) The wattage rating of the panels don't matter. What matters is the DC voltage rating, the amp rating of the panels and the circuit configuration of all the panels........ie.... wired in series or parallel or in a combination of series/parallel.
4) Panels wired in series will increase the output voltage and the total amps remain the same.
5) Panels wired in parallel will increase the output amperage and provide a faster re-charge time to the battery or battery bank. Total amps are additive, yet the output voltage remains the same. Thus, the opposite of wiring panels in series.
6) Panels wired in a combo circuit will do both.
If you have any additional questions, let me know and I’ll be glad to answer them for you.
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