batteries in place of generator

[Wilhelmus Schreurs]

Thanks Jay, interesting, something different in each coach.

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


----- Original Message ----
From: Jay Darst
To: WanderlodgeForum@yahoogroups.com
Sent: Tuesday, December 18, 2007 8:10:09 PM
Subject: [WanderlodgeForum] Re: batteries in place of generator













FYI



In my 85 PT40, is a Leece-NeVille 320amp alternator.



That is the biggest I could find in a 12volt alt.



Makes plenty of power to run an inverter powered A/C while running

down the road.



Incidentally, I have run 1 roof air with the inverter WITHOUT the

Detroit running. Run it while at a lunch stop or loading and

unloading.



I have 6 6volt trojan T105s. Thats 660 amp hour capacity of which you

can safely use about 50% when sucking on them with a big draw like

A/C. The roof airs start at about 19 amps and then operate at about

12.5 amps.



That means that 12.5 amps(@110V) x 110 = 1,375 watts

but then inverters typically are around 92% efficient so

1,375 divided by 93% = 1,478 watts so

1,475 divied by 12.5Volts = 118 amp draw at 12.5volts so

if the A/C runs at 100% duty cycle, you should be able to run the A/C

for 2.8 hours.



There are some other factors that will/could cause less run time, has

to do with a high amp draw with no break in the action. Prawlly

internal battery temps and other misc stuff.



You won't start the coach on that battery bank after 2.8 hours. Ya

might start it after an hour if temps are above 70 degrees, which

probably would be, since you're running A/C.



Ramble ramble ramble



2 cents... ;~}



Jay Darst

85PT40 with Xantrex 2,500 watt Inverter/Charger and 320amp alt

'91 Prevost Royale 40XL with a 24V 280amp alt using Vanner

electronics to step down to 12V

'00 Prevost Royale H345 with 2 alternators 1-12v140amp and 1-24v

monster oil cooled, etc

Springfield/ Sullivan, IL



--- In WanderlodgeForum@ yahoogroups. com, Wilhelmus Schreurs

wrote:

>

> Dorn:

> Let us know what alternator you might settle on. I am thinking of

upgrading as well, escpecially with the electric brake drawing the

current like it does.

>

> Bill 84 FC 35 SB "$quanderlodge"

> Terrace, B.C. Canada

>

>

> ----- Original Message ----

> From: Dorn Hetzel

> To: WanderlodgeForum@ yahoogroups. com

> Sent: Tuesday, December 18, 2007 12:31:07 PM

> Subject: Re: [WanderlodgeForum] Re: batteries in place of generator

>

>

>

>

>

>

>

>

>

>

>

>

>

> Yep, my engine run A/C doesn't run right now, but it's

on my short list to

>

> repair, just putting it off until spring since I sure don't need AC

now

>

>

>

> I'm looking at something like a Xantrex RS3000 and about 300 amps of

>

> alternator capacity. That should run at least one of the AC units

while

>

> driving I would hope.

>

>

>

> Regards,

>

>

>

> Dorn Hetzel

>

> 77FC35

>

> Hogansville, GA

>

>

>

> On Dec 18, 2007 2:45 PM, Jon wrote:

>

>

>

> > --- In WanderlodgeForum@ yahoogroups. com
40yahoogroups. com>,

>

> > "Dorn Hetzel"

>

> > wrote:

>

> > >

>

> > > 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]

>

> >

>

> > Without saying to much I would stick with some type of generator.

If

>

> > your coach is typical for being a vintage Wanderlodge than your

>

> > Engine run A/C does not operate. Now I know most of the people

here

>

> > use there generator to run there topside A/C unit in hot weather

when

>

> > there dash air is not operational. These old coaches can get

pretty

>

> > hot inside during the summer months. I would stick to a generator

>

> > just for that reason. Jon

>

> > >

>

> >

>

> >

>

> >

>

>

>

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

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