P20L PWM Controller with LiFePo4 Battery

Discussion in 'Charge Controllers' started by Gerald W. Liddle, Jan 15, 2020.

  1. I am using this controller with Lithium batteries and have it set to b00 (Lithium Battery). I can't find in the manual what the boost/absorb voltage is. I've set the float voltage to 13.6v.

    Does any one know what the boost voltage is for setting b00 (Lithium) battery. My batteries are Valence U1-12RT LifeMgPo4 connected in parallel.


  2. TomT

    TomT WindyNation Engineer

    By the manual you set the float voltage for the battery.
    And that is all there is to it.
  3. Very old question, however........

    When I inquired about that unit, I was told that it is a very simple type, and unlike some other models, has no boost etc function.

    Apparently the unit only charges until it reaches the float voltage, and then holds there.

    The "Flush mount" 30A unit has all the settings you are asking about, you can look in the manuals on-line..

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