Like Tree0Likes

12 Volt Airconditioning

Reply
Old 11-21-2009, 12:32 PM
  #1
Platinum Member
Platinum Member
Thread Starter
 
Join Date: Jan 2003
Location: Brookfield, Wi.
My Boats: 33 Active Thunder
Posts: 934
Default 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
509 SC is offline  
Reply With Quote
Old 11-23-2009, 08:50 PM
  #2
Platinum Member
Platinum Member
Thread Starter
 
Join Date: Jan 2003
Location: Brookfield, Wi.
My Boats: 33 Active Thunder
Posts: 934
Default

Anybody?
509 SC is offline  
Reply With Quote
Old 11-23-2009, 08:58 PM
  #3
Registered
 
Join Date: Aug 2007
Location: Port Deposit, MD
My Boats: 1992 38SC
Posts: 622
Default

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.
PJDiesel is offline  
Reply With Quote
Old 11-24-2009, 08:05 AM
  #4
B38
Registered
 
Join Date: Oct 2000
Location: Deland, Fl
My Boats: Bertram 38' Comp'
Posts: 551
Default

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.
B38 is offline  
Reply With Quote
Old 11-24-2009, 10:59 AM
  #5
Forum Regulator
VIP Member
Trade Score: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
My Boats: 17' Speedliner Cat & O.P.B.
Posts: 21,920
Default

Steve, do you have thoughts against running the little Honda EU2000i into the shore power and running a normal AC unit?
Sydwayz is offline  
Reply With Quote
Old 11-24-2009, 12:50 PM
  #6
Member #9
Charter Member
 
hp500efi's Avatar
 
Join Date: Oct 2000
Location: Pewaukee, WI
Posts: 4,269
Default

simple,

one large cooler full of ice
one small 12v fan
turn on fan, blow air across ice and whallla
__________________
Member of the Liquid Jungle
hp500efi is offline  
Reply With Quote
Old 11-24-2009, 01:41 PM
  #7
Were doomed!
Charter Member
Trade Score: (1)
 
Wally's Avatar
 
Join Date: Oct 2000
Location: Chicago, IL
My Boats: Chris Craft Stinger 222
Posts: 5,529
Default

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...
__________________
-Wally

Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
Wally is offline  
Reply With Quote
Old 11-24-2009, 02:21 PM
  #8
Registered
 
Join Date: Oct 2000
Location: Lakewood, NY, USA
My Boats: Velocity 290 VR- 1
Posts: 2,546
Default

Velocity had a 12 volt system. You might e mail Kenny at Velocity and ask about it.
Padraig is offline  
Reply With Quote
Old 11-24-2009, 02:24 PM
  #9
Platinum Member
Platinum Member
 
Join Date: Oct 2000
Posts: 1,297
Default

http://www.dcbreeze.com/

Don't know much about it, but seems interesting
Dueclaws is offline  
Reply With Quote
Old 11-24-2009, 04:13 PM
  #10
Registered
 
kr1276's Avatar
 
Join Date: May 2001
Location: Tampa,Fl
My Boats: Baja 442
Posts: 570
Default

The Eu2000 works fine with most a/c units on performance boats. Plugs into your shorepower cable with a connector.
We have sold many Eu2000's on here in the past. Anyone needs one, just let me know.

Keith
kr1276 is offline  
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:12 PM.


Copyright 2011 OffShoreOnly. All rights reserved.