12 Volt Airconditioning
11-21-2009 | 11:32 AM
#1
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From: Brookfield, Wi.
12 Volt Airconditioning
I was just wondering if anyone has had any real experience with a 12 volt AC unit that runs off of batteries. Do they work well, what kind of run time and how many BTU's are required for a 35' cabin? Thanks Steve
11-23-2009 | 07:58 PM
#3
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From: Port Deposit, MD
I can't imagine that working out too well. My AC makes a 4KW generator lug for a second when it cycles on.
If I had to guess, you would (at minimum) need to have a bank of 6 (or more?) 6 volt golf cart batteries. That would probably net you around 1.5 to 2.5 hours of run time. The problem is going to be that more than likely you'll be starting in the 90* range (ambient) to get down around 70 is going to take some time running full bore.
Just throwing out some semi- educated guesses here.
If I had to guess, you would (at minimum) need to have a bank of 6 (or more?) 6 volt golf cart batteries. That would probably net you around 1.5 to 2.5 hours of run time. The problem is going to be that more than likely you'll be starting in the 90* range (ambient) to get down around 70 is going to take some time running full bore.
Just throwing out some semi- educated guesses here.
11-24-2009 | 07:05 AM
#4
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From: Deland, Fl
Hello 509 SC
My parrents still live in Brookfield, North and Lilly rd. Small world I see. I graduated HS @ Brookfield Central.
RE: 12 Vlt AC, need to many batteries to run unit for short time. Also starting amps will kill compressor eventually. The weight alone of the batteries needed would be too much. Plus what will charge them, solor and wind generator maybe will recharge back to full state in perfect conditions,.. No wind, or Sun. screwed buddy for the next run cycle of AC. Just my 2 cents.
My parrents still live in Brookfield, North and Lilly rd. Small world I see. I graduated HS @ Brookfield Central.
RE: 12 Vlt AC, need to many batteries to run unit for short time. Also starting amps will kill compressor eventually. The weight alone of the batteries needed would be too much. Plus what will charge them, solor and wind generator maybe will recharge back to full state in perfect conditions,.. No wind, or Sun. screwed buddy for the next run cycle of AC. Just my 2 cents.
11-24-2009 | 12:41 PM
#7
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From: Chicago, IL
I believe Marine Air has been experimanting with the 12v systems for a few years...they were trying to use one of our smaller pumps but the amp draw we require was a tad on the high side for them. Anyway i believe they use an inverter for their system..it draws 29 amps when running...so depending on how many batteries you want, that will give you your running time...their unit only puts out 3500BTU's so it would be good for smaller cabins...
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11-24-2009 | 01:24 PM
#9
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