24v to 48v boost converter to power a 48v inverter

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  • fabieville
    Member
    • Jun 2015
    • 75

    24v to 48v boost converter to power a 48v inverter

    I am planning to buy a 24v to 48v step up converter boost supply rated at 40ah 1920watt to power my 48v 3000watt pure sinewave inverter.

    I have a 24v 150ah battery bank and I want to connect the circuit to it which would allow a input voltage of 18-32v and produce 48v at the output which would then connect to the 48v inverter to power it.

    I want to know what are the pros and cons with this step up.

    Here is a link with the boost converter stating the specs:
    http://www.ebay.com/itm/272475782502...%3AMEBIDX%3AIT

    I can't find any reviews on the converter so I am not sure if it will handle the full wattage has it stated and how it operates under heavy load. But assuming it works good there are some questions i would love to get answers for.

    Using it with my battery bank rated at 24v 150ah during operation in theory I would only get a total of half of my battery bank(75ah) to use due to the fact that it is doubling the 24v input to 48v? Or what is the estimated total useable amps out of the battery bank i would be able to use?

    Also would this be far more efficient comparing to if i was using a battery bank rated at 48v 75ah to power the inverter?

    What is the estimated efficiency lost I would accumulated going through this process? and would it be the same even if i was powering the inverter with a 48v battery bank instead of the boost converter?

    Do you think I could double 2 of these units to get a total output of 80ah and would this decrease or increase efficiency? 20160817110835688.jpg
  • SWFLA
    Junior Member
    • Jan 2017
    • 89

    #2
    Originally posted by fabieville
    I am planning to buy a 24v to 48v step up converter boost supply rated at 40ah 1920watt to power my 48v 3000watt pure sinewave inverter.

    I have a 24v 150ah battery bank and I want to connect the circuit to it which would allow a input voltage of 18-32v and produce 48v at the output which would then connect to the 48v inverter to power it.

    I want to know what are the pros and cons with this step up.

    Here is a link with the boost converter stating the specs:
    http://www.ebay.com/itm/272475782502...%3AMEBIDX%3AIT

    I can't find any reviews on the converter so I am not sure if it will handle the full wattage has it stated and how it operates under heavy load. But assuming it works good there are some questions i would love to get answers for.

    Using it with my battery bank rated at 24v 150ah during operation in theory I would only get a total of half of my battery bank(75ah) to use due to the fact that it is doubling the 24v input to 48v? Or what is the estimated total useable amps out of the battery bank i would be able to use?

    Also would this be far more efficient comparing to if i was using a battery bank rated at 48v 75ah to power the inverter?

    What is the estimated efficiency lost I would accumulated going through this process? and would it be the same even if i was powering the inverter with a 48v battery bank instead of the boost converter?

    Do you think I could double 2 of these units to get a total output of 80ah and would this decrease or increase efficiency? 20160817110835688.jpg
    I think the site is under attack!

    Comment

    • Sunking
      Solar Fanatic
      • Feb 2010
      • 23301

      #3
      Originally posted by fabieville
      I have a 24v 150ah battery bank and I want to connect the circuit to it which would allow a input voltage of 18-32v and produce 48v at the output which would then connect to the 48v inverter to power it.
      Not going to waste a lot of my time here because it is pointless. A 24 volt 150 AH battery can only handle up to a 600 to 800 watt Inverter of any voltage. So it is pointless to say anymore.

      MSEE, PE

      Comment

      • Mike90250
        Moderator
        • May 2009
        • 16020

        #4
        A better idea is to up the size of the battery bank to match the inverter. Throwing a kluge at it is bound to disappoint,
        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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