4 solar panels, two 12 volt batteries ..panels wired in series or parrallel?


  •    With such small system, panels not yet connected to solar charge controller, multimeter measurement under this morning hazy sun ...approximately 21 and 22 volts per panel.

       How do I know whether to connect panels in series or parrallel?



  • if you have 12v batteries you can do 1 of 2 things 12v  putting batteries in parrallel will give you double the capacity.

    With regards to the panels . you would need to give more info. Some mppt controllers have a lower voltage  and amp so you would need to make sure that your panels dont exceed these. 

    I have 8 panels in series parellel my system is is 24v and consistes of 2 strings in parallel to victron mppt controllers .. I am sure the MPPT that Eco-worthy  produce would work.

    So what are you trying to power. ? 


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