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Using two 12v chargers for 24v batteries

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  • Using two 12v chargers for 24v batteries

    Hello,
    Can I connect chargers this way? I want to use two chargers for battery balancing.
    Thanks!

    Bilder hochladen

  • #2
    Probably not. Most lost cost charge controllers have the ability to charge both 12v and 24v batteries. Usually it is the 24volt inverter that costs a lot.

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    • #3
      While the Morningstar SunSaver charge controllers are single nominal voltage controllers virtually all other small modern controllers do 12/24 volt. (including the ones shown here). Make sure your controller's amperage rating matches the output of the panels into the nominal battery bank rating and use ONE controller.
      2.2kw Suntech mono, Classic 200, NEW Trace SW4024

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      • #4
        Maybe, but only using PWM charge controllers.
        You have balanced loading, so a single charger should provide correct charging.
        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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        • #5
          Most chargers do not provide DC isolation between the input and the output.
          In your case that translates to requiring two separate panel arrays, one for each charger.
          SunnyBoy 3000 US, 18 BP Solar 175B panels.

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