FlexMax 80 Outback & Lithium Batteries

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  • Bendesa1962
    Solar Fanatic
    • Nov 2016
    • 110
    #1

    FlexMax 80 Outback & Lithium Batteries

    Hi All,

    I have a question if here's anybody around who has experience with Outback FlexMax 80 and lithium batteries.


    I'm setting up a 12 volt battery bank with 720Ah capacity.

    Anybody can advise about the right charger settings for lithium batteries?

    Many thanks upfront

    Kind regards

    Johan
    Tags: None
    • Mike90250
      Moderator
      • May 2009
      • 16020
      #2
      The batteries will have their own specs, much like every mfg of lead acid batteries has their own specs.

      Better question is will the BMS be able to handle such a large bank and charging source ?
      Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
      || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
      || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

      solar: http://tinyurl.com/LMR-Solar
      gen: http://tinyurl.com/LMR-Lister

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        • tom rickard
          Member
          • May 2015
          • 47
          #3
          If they are LiFePO4, set the Flexmax to Absorb to 13.6v (3.4v/cell), absorb time 30mins. Set float to 13.4(3.35v/cell). Turn off temp compensation and equalisation.

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