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1500 Watt Inverter - An Overkill???

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  • 1500 Watt Inverter - An Overkill???

    Gents, (Ladies too if there are any)

    I've just acquired a 1.5kW inverter that could be part of my car PC setup. Just wondering, is this a significant overkill, to be the point it might be detrimental to my car?

    Thanks
    Malaysia
    -Alfa Romeo Giulietta 1982 with 1992 Alfa 75 2.0 Twin Spark Engine-

  • #2
    Yes....

    a pc at most is 400-500watts and thats a full blowen desktop pc. But the unit is only going to draw the amount of power that is needed. Just remeber p(watts) = volatge x amps. So p/v = amps... 1.5k watts/14 vlts = 107amps which is more than most car alternators put out, so be carefull.

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    • #3
      It really depends on what you want to run. I would stick it in and see if it hirts your charging system.
      1990 Jeep Cherokee
      2000 VW Golf TDI 4dr
      2005 VW GTI MKIV - SOLD

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      • #4
        Hey, this is where the post I was derided for being "too detailed for newbies" (paraphrased ) in this thread actually has some use!

        Inverter efficiency varies with load - I guess a typical peak efficiency is around 60% - 70% load, and worst efficiency tends to be at very low loads. If you have a relatively small load (100W - 200W is pretty common around here, my guess) on such a large inverter, your efficiency might be pretty bad. Or it might be okay - check the specs for your inverter if you can.

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        • #5
          Thanks for the input guys. I think I really need to look up on my alternator first. Its got a max rating of 90 amps, hence it would definitely not power the inverter to the inverter's max rating.
          Malaysia
          -Alfa Romeo Giulietta 1982 with 1992 Alfa 75 2.0 Twin Spark Engine-

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