[ausev] A/C in an EV - battery recommendations?

Mon Jul 23 20:16:34 GMT 2007

I got my trojan batts from a boating company at 183/mopac.
Trojan pointed me to them.
I paid a little less than the best deal I could find on the internet.

At 02:56 PM 7/23/2007 -0500, you wrote:
>You can also check out Lone Star Carts and Service in Pflugerville. He is
a Trojan dealer and he indicated he would get me a volume discount when I
inquired a couple of years ago.
>
>-----Original Message-----
>>From: Claire Sorenson <csorenson1 at austin.rr.com>
>>Sent: Jul 22, 2007 9:58 AM
>>To: 'AustinEV News Announcements and General Discussion'
<ausev at austinev.org>
>>Subject: Re: [ausev] A/C in an EV - battery recommendations?
>>
>>I just bought a Jet - Ford Courier truck that needs 20 6V batteries.  Which
>>Lead Acids are working best for ya'll?  I saw one EV website that
>>recommended US 125, 6V flooded Lead Acid golf car batteries that give a good
>>range with reasonable price.  The other links on our EV website didn't
>>appear to mention much about batteries.  I'm not looking for a long
>>discussion of  battery theory as much as short list of what people are
>>successfully using now and where you purchased them, especially if there are
>>some good local sources.  I would like to have at least the range and m.p.h.
>>that my Jet - Ford Escort is getting: 45 range, 50 m.p.h.  Thanks
>>
>>-----Original Message-----
>>From: ausev-bounces at austinev.org [mailto:ausev-bounces at austinev.org] On
>>Behalf Of Sarah & Erik
>>Sent: Tuesday, June 12, 2007 11:24 PM
>>To: AustinEV News Announcements and General Discussion
>>Subject: Re: [ausev] A/C in an EV
>>
>>For scale, it takes about 50 amps at 128V to keep my car going 40 mph ( I
>>think it's actually a little less, but it's never flat enough around here to
>>actually find out!)
>>
>>50A * 120V =6kW =~ 8 hp (120V is accounting for some battery sag)
>>
>>That's battery power, it's probably about 6 hp that's actually making it to
>>the road after the controller and the transmission losses.
>>
>>My understanding is car AC is they are somewhere between 3000-10000 Btu/h,
>>which is 1.2-4 hp. It's does take a healthy amount of juice to run AC. BUT
>>apparently it also takes less AC to cool your car once converted because you
>>no longer have an engine dumping a huge amount of heat in front of your car.
>>
>>Erik
>>
>>On 6/12/07, TERRY KING <tntking at sbcglobal.net> wrote:
>>> I don't have exact figures in my head regarding how much horsepower is 
>>> used to run an R-134 air conditioning compressor off an ICE, but I 
>>> think it would surprise us all. I'm thinking at least 10 to15 HP to 
>>> run one. Another alternative that just popped into my head is those 12 
>>> volt coolers that are plugged into the cigarette lighter. I don't 
>>> remember the principle on which they work, and I haven't ever owned 
>>> one to see how much capacity they have but they might be adaptable.
>>>
>>> Brian Lasseter <blasseter.cmpe01 at gtalumni.org> wrote:
>>> On 6/11/07, TERRY KING wrote:
>>> > I'm laying the groundwork toward converting a Geo Metro to battery
>>> electric
>>> > and I plan to have air conditioning. I live in No.Texas which is no 
>>> > place
>>> to
>>> > live without it; but it won't be based on refrigerant. I plan to 
>>> > circulate chilled water through my existing evaporator using an ordinary
>>ice cooler.
>>> I
>>> > may even try an ice & salt combination but that might be actually 
>>> > too corrosive for my aluminum evaporator. I've located on Ebay RV 
>>> > water pumps which move .7 to 2.8 gallons per minute and draw around 4
>>amps @ 12 volts.
>>> I
>>> > figure the ice will melt to ambient temperture just about the time 
>>> > my battery pack is due a recharge. I'll keep you posted
>>>
>>> While a realize a question of motives might be a bit of a stretch for 
>>> this list, I am kind of curious for a brief take on why you do not 
>>> plan on using refrigerant.
>>>
>>> I live in TX too, and I sure as heck plan on having A/C in my car, but 
>>> in my car, the plan is to just use the refrigerant that is already in 
>>> the car, and just hook an electric motor to run the compressor. (Even 
>>> if I didn't use the refrigerant, I would still have to dispose of it.) 
>>> This method is less efficient, but it is cheaper and easier.
>>>
>>>
>>> --
>>> TTFN,
>>> Brian "Lasso" Lasseter
>>>
>>> . (512)736-1677 . AIM:digininja . ICQ:2238123 . MSN:azoreg . "No Sane 
>>> man will dance." -Cicero (106-43 B.C.)
>>>
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>>>
>>
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