

folotp wrote:Relating to the location of the controller, you typically want it as close to the batteries as possible especially if your panel voltage is high. My panels output at 48V thus the wire size required to minimize voltage drop at 48V is much lower than at 12V. So big $ savings in keeping the longer wire runs at 48V!
If you have multiple panels that will be shaded differently at different times of day, you are much better having one controller per panel as it will allow them to extract as much as they can from each of the panels. If however the panels were to be installed in a location where they are never shaded, then one controller is fine. If using multiple controllers, do make sure that all the controllers are setup with the same charging parameters as otherwise one might switch to float and basically shutdown while another one is still in absorption.
Good luck!
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