Discussion in 'Charge Controllers' started by jobrofin, Nov 17, 2020.

  1. I am using a P20L in my solar system. I have 1 200watt and 1 100watt panels, connected in parallel to the P20L and a 2 GC-2 batteries in series to make a 12v battery bank. The float voltage is set to 13.7 After charging for 4 hrs, i notice the P20L arrow begins to flash. Does this mean it has reached the float voltage? Are the batteries 100% charged or to do need to continue to charge them? What happens if I continue to keep charging after the arrow starts to flash? Is 13.7 the proper charge voltage setting?
  2. TomT

    TomT WindyNation Engineer

    It shows 13.8 for float voltage.
    For a regular acid filled battery.
    When it is in Float State.
    It will send just enough power to maintain the battery.

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