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Thread: air conditioner

  1. #11
    Senior Member Endurance's Avatar
    Join Date
    Nov 2005
    Lake Powell, Utah
    Quote Originally Posted by Stmbtwle View Post
    I wonder if this is the one?

    at 40-50 amps it would take some serious batteries to run all night.
    I'll say. If you went in the middle at 45 Amps and ran it for a couple of hours to cool things down before going to sleep for eight hours, you would use 45 X 10 = 450 Amp hours (Ah) each night. The most you dare draw lead-acid batteries down is 50%, which means that you'd need a 900 Ah battery bank assuming full efficiency and a 100% charge each night. Even assuming that, you would need at least ten GC2 golf cart batteries to give a 900 Ah bank at 12 volts. A bank of 12 GC2 batteries would be more like it. That's a big battery bank. I can only imagine trying to get it charged each day.

  2. #12
    Senior Member
    Join Date
    Jul 2012
    Cadiz, Ky--Okeechobee, Fl
    I built a 12 volt portable air conditioner from a 36 qt. cooler, a 6" 12 volt fan and 6- 2 liter bottles of ice. The plans were on utube. In the small cutty it lasted for 8 hrs and was really comfortable. The next day you will have 6-2liter bottles of drinking water. Check it out on utube under homemade a/c

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