batteries in place of generator

[Wilhelmus Schreurs]

Running A/C on batteries alone is almost impossible. The draw is continous at
about 1400 watts, as a fridge is about 500watt cyclic, the bigger fridges
somewhat more maybe 700 or so.

I believe the electric buses have a smaller engine running an alternator or
generator to continously charge the batteries, but having the engine running at
a constant speed reduces fuel consumption.

Bill 84 FC 35 SB "$quanderlodge"
Terrace, B.C. Canada


----- Original Message ----
From: bubblerboy64
To: WanderlodgeForum@yahoogroups.com
Sent: Tuesday, December 18, 2007 12:48:50 PM
Subject: [WanderlodgeForum] Re: batteries in place of generator













Well? I just learned last week that many of the new buses are all

electric. Now, can you run the air conditioning in these buses off

the batteries? I would guess that you can not. That you would have

to start the generator. Some one mentioned the refrig as being a big

draw on battery bank stored energy. Seems to me an air conditioner

would pull more then the refrig unless the refrig was started in a

warm condition. I know nothing about this subject other then

personal experience with RV roof air conditioners and I know they

draw a bunch of power especially on first start up.

John Heckman

central Pa

1973 FC



>

> and 3600 watts = 30 amps at 120v. I've never worried about running

an AC on

> a 30amp shore hookup.

>

> I'm pretty sure the book says the AC units pull about 12 or 13 amps

> running. If they need some surge to start I would think the big

inverter

> and the bank of 8 to 12 batteries could handle it?

>

> On Dec 18, 2007 3:20 PM, Peter T. Arnold wrote:

>

> > 300 Amps X 12V = 3600 watts

> >

> > I wouldn't think of running a 13.5 BTU air conditioner with out a

5.0

> > Generator to cove line loss and motor start surge.

> >

> > Pete

> >

> >

> > On Tue, 18 Dec 2007 14:10:59 -0500, you wrote:

> >

> > >I could do that also. I already own a couple of portable

generators, one

> > >5kva and and 7.5kva.

> > >

> > >I'm not so much planning on running the main engine solely to

charge the

> > >batteries as charging the batteries while going down the road, or

> > charging

> > >the batteries while parked where there *is* shore power. I

probably need

> > >to make sure we can run one of the rooftop AC units while going

down the

> > >road, but I'm suspecting a big hunky alternator (say 300 amps or

so)

> > could

> > >handle that... I'm guessing that 12.5kw gas genset and

associated 30

> > >gallons of fuel must weigh over 500lbs combined, which is a fair

amount

> > of

> > >batteries, say another 8 or more.

> > >

> > >On Dec 18, 2007 1:21 PM, bubblerboy64
40hotmail.com> >

> > wrote:

> > >

> > >> Dorn, Don't know if your idea would work or not, but I have

decided

> > >> if my generator dies I think I will make a storage bay for my

> > >> portable Honda generators and do it that way. Wouldn't be able

to run

> > >> them going down the road but I would be able to use them as I

did

> > >> with my previous trailers. I own the Honda's and rather then

dumping

> > >> big bucks into a new onan or similar I think I would

compromise as

> > >> suggested.

> > >> John Heckman

> > >> central Pa

> > >> 1973 FC

> > >>

> > >> >

> > >> > The gas generator on my 77FC35 isn't in the best shape.

(hosed up

> > >> flywheel,

> > >> > takes many tries to find enough teeth to make it start, then

> > >> doesn't run for

> > >> > more than 5 minutes without starving for fuel... (or so it

seems))

> > >> >

> > >> > I'm considering just pulling it out and filling the hole

where it

> > >> used to be

> > >> > with a big pile of batteries and a big inverter/charger.

> > >> >

> > >> > My thought is that the generators weight in batteries would

be a

> > >> lot of Amp

> > >> > Hours.

> > >> >

> > >> > I would also probably put in the biggest alternator I could

get my

> > >> hands on

> > >> > for best charging and most useable power whilst on the road.

> > >> >

> > >> > I realize this arrangement probably won't run the much air

> > >> conditioning, or

> > >> > for long, but I don't have any immediate plans to boondock

with the

> > >> air

> > >> > running

> > >> >

> > >> > Any thoughts? Anyone tried this with success or failure?

> > >> >

> > >> > Regards,

> > >> >

> > >> > Dorn Hetzel

> > >> > 77FC35

> > >> > Hogansville, GA

> > >> >

> > >> >

> > >> > [Non-text portions of this message have been removed]

> > >> >

> > >>

> > >>

> > >>

> > >

> > >

> > >[Non-text portions of this message have been removed]

> >

> > --

> >

> > Fraternal Regards,

> >

> > Peter T. Arnold

> >

> > Worthy Patron, Temple Chapter #53 {3rd Time}

> >

> > Hartford Evergreen Lodge #88 Past Master

> > Meets on 1st and 3rd Mondays

> >

> > Washington Lodge #70, Past Master 1997

> > 2nd and 4th Monday

> >

> > Yahoo 6th District B.L.C. Newsgroup Co-Moderator

> >

> > Past A.G.M., Masonic District 6B

> > Grand Lodge of Connecticut A.F. & A.M.

> >

> > As you can see, I'm busy on Mondays!

> >

> >

>

>

> [Non-text portions of this message have been removed]

>














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