[c350ia] [Fwd: battery length]
Andy Sumberg
andy@sumberg.com
Thu, 05 Jun 2008 19:37:13 -0400
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Folks,
I look at the battery time like this. I may be a little off on my
assumptions.
The owners manual for the refrigerator states =93=85 figure =
approximately 5 amps
when running. The average draw, as the ColdMachine cycles on and off, is =
1.8
to 2.4 amps for most 4 to 8 cubic ft iceboxes with average (3 inch plus)
rigid polyurethane foam insulation.=94=20
Figure each of our house batteries are 150Ah (I don=92t remember exactly =
what
they are). Generally you don=92t want to draw down a house battery below =
50%.
Therefore one battery could easily deliver 75Ah which would run the
refrigerator (cycling on and off at 50%) for=20
=20
75 Amp Hours/ 2.5 Amps =3D 30 hours
=20
Few items draw as much as the refrigerator (excluding AC which should =
not be
used away from shore power), but you would still have to adjust some,
particularly for lights. If you ran the house for 12 hours on one =
battery
and then ran it for another 12 hours on the other battery and then ran =
the
engine once every 24 hours for an hour or two, you should be ok.
=20
One of the first modifications I made to my boat was to put in a =
separate
dedicated engine start battery. This way, no matter how much I draw down =
the
house batteries, the engine can still be started. I never use the house
batteries individually, but always use them together. I wrote this up =
for
November 2005 Mainsheet. If any more recent owners are considering the =
same
modification, I=92d be happy to email the article to you. In the same =
article
I discussed a solar panel I installed to top off my batteries when the =
boat
is on my mooring, and the installation of a Xantrex Battery Monitor. I =
do
not have a slip and get to use shore power about once a year.
=20
Andy Sumberg
=93Portland=94 #231
=20
_____ =20
From: c350ia-admin@catalina350.net [mailto:c350ia-admin@catalina350.net] =
On
Behalf Of tjr3c@comcast.net
Sent: Thursday, June 05, 2008 3:31 PM
To: skip7@verizon.net; c350ia@catalina350.net
Subject: Re: [c350ia] [Fwd: battery length]
=20
Skip,
Its a good question and I really don't know the answer but we oftern =
anchor
out and we use the head, the refrigerator, anchor light, some reading
lights, radio, and even some instruments. Never had a problem the next =
day.
I recommend you do what the charter fleets do. The Moorings recommends =
that
you run the engine on their boats at least two hours a day to keep the
batteries up. We never did but we did run the engine at 1600 RPMs for =
at
least 20-30 minutes everyday in the morning. This got us through 7
days/nights without shore power.
Tim
#332
=20
-------------- Original message --------------=20
From: <skip7@verizon.net>=20
> >From: D Malecki=20
> >Date: 2008/06/05 Thu AM 11:40:33 CDT=20
> >To: skip7@verizon.net=20
> >Subject: battery length=20
>=20
> C350 Owners,=20
>=20
> I have responded to this e-mail already but I know there are many of =
you
that=20
> are far more knowledgeable than me on this subject.=20
> I know the Maleckis will appreciate any advice anyone can give=20
> dmalecki@prodigy.net=20
> Thanks.=20
>=20
> Skip Penizotto=20
> .=20
> >Hi Skip!=EF=BF=BDWe are taking our 1st long trip with our boat - hull =
#184.=EF=BF=BD
We may=20
> have to anchor out acouple of times.=EF=BF=BD My question - do you =
know how long
the=20
> bateries hold=EF=BF=BD their charge while running the fridg/freezer =
and
head=EF=BF=BDwithout=20
> totally dr! aining them?=EF=BF=BD That's without 110v AC! =EF=BF=BDWe =
do not have an
invertor=20
> or a generator.=EF=BF=BDWhen we purchased our boat the dealer said 4 =
hours -
that=20
> does'nt sound right! =EF=BF=BDPls. advise!=EF=BF=BDDot=EF=BF=BDAlso =
I've called and emailed=20
> Catalina with no luck of a return call.=EF=BF=BD Also tried the forum =
and it
never=20
> posted.=EF=BF=BD Thanks!!=20
>=20
> _______________________________________________=20
> c350ia mailing list=20
> c350ia@catalina350.net=20
> http://www.catalina350.net/mailman/listinfo/c350ia=20
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<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Folks,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I look at the battery time like =
this. I
may be a little off on my assumptions.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>The owners manual for the =
refrigerator states
“… figure approximately 5 amps when running. The average =
draw, as
the ColdMachine cycles on and off, is 1.8 to 2.4 amps for most 4 to 8 =
cubic ft
iceboxes with average (3 inch plus) rigid polyurethane foam =
insulation.” <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Figure each of our house batteries =
are
150Ah (I don’t remember exactly what they are). Generally you =
don’t
want to draw down a house battery below 50%. Therefore one battery could =
easily
deliver 75Ah which would run the refrigerator (cycling on and off at =
50%) for <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>75 Amp Hours/ 2.5 Amps =3D 30 =
hours<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Few items draw as much as the =
refrigerator
(excluding AC which should not be used away from shore power), but you =
would
still have to adjust some, particularly for lights. If you ran the house =
for 12
hours on one battery and then ran it for another 12 hours on the other =
battery and
then ran the engine once every 24 hours for an hour or two, you should =
be ok.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>One of the first modifications I =
made to
my boat was to put in a separate dedicated engine start battery. This =
way, no
matter how much I draw down the house batteries, the engine can still be
started. I never use the house batteries individually, but always use =
them
together. I wrote this up for November 2005 Mainsheet. If any more =
recent
owners are considering the same modification, I’d be happy to =
email the
article to you. In the same article I discussed a solar panel I =
installed to
top off my batteries when the boat is on my mooring, and the =
installation of a
Xantrex Battery Monitor. I do not have a slip and get to use shore power =
about
once a year.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Andy =
Sumberg<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>“<st1:City =
w:st=3D"on"><st1:place
w:st=3D"on">Portland</st1:place></st1:City>” =
#231<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>
<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>
</span></font></div>
<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
c350ia-admin@catalina350.net
[mailto:c350ia-admin@catalina350.net] <b><span =
style=3D'font-weight:bold'>On
Behalf Of </span></b>tjr3c@comcast.net<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, June 05, =
2008 3:31
PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> skip7@verizon.net;
c350ia@catalina350.net<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: [c350ia] =
[Fwd:
battery length]</span></font><o:p></o:p></p>
</div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Skip,<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Its a good question and I really don't know the answer but =
we
oftern anchor out and we use the head, the refrigerator, anchor light, =
some
reading lights, radio, and even some instruments. Never had a =
problem the
next day. I recommend you do what the charter fleets do. The
Moorings recommends that you run the engine on their boats at least two =
hours a
day to keep the batteries up. We never did but we did run the =
engine at
1600 RPMs for at least 20-30 minutes everyday in the morning. This =
got us
through 7 days/nights without shore power.<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Tim<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>#332<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<blockquote style=3D'border:none;border-left:solid #1010FF =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>-------------- Original message -------------- <br>
From: <skip7@verizon.net> <br>
<br>
> >From: D Malecki <br>
<DMALECKI@PRODIGY.NET>> >Date: 2008/06/05 Thu AM 11:40:33 CDT <br>
> >To: skip7@verizon.net <br>
> >Subject: battery length <br>
> <br>
> C350 Owners, <br>
> <br>
> I have responded to this e-mail already but I know there are many =
of you
that <br>
> are far more knowledgeable than me on this subject. <br>
> I know the Maleckis will appreciate any advice anyone can give <br>
> dmalecki@prodigy.net <br>
> Thanks. <br>
> <br>
> Skip Penizotto <br>
> . <br>
> >Hi Skip!=EF=BF=BDWe are taking our 1st long trip with our boat =
- hull
#184.=EF=BF=BD We may <br>
> have to anchor out acouple of times.=EF=BF=BD My question - do you =
know how long
the <br>
> bateries hold=EF=BF=BD their charge while running the fridg/freezer =
and
head=EF=BF=BDwithout <br>
> totally dr! aining them?=EF=BF=BD That's without 110v AC! =
=EF=BF=BDWe do not have an
invertor <br>
> or a generator.=EF=BF=BDWhen we purchased our boat the dealer said =
4 hours -
that <br>
> does'nt sound right! =EF=BF=BDPls. advise!=EF=BF=BDDot=EF=BF=BDAlso =
I've called and emailed <br>
> Catalina with no luck of a return call.=EF=BF=BD Also tried the =
forum and it
never <br>
> posted.=EF=BF=BD Thanks!! <br>
> <br>
> _______________________________________________ <br>
> c350ia mailing list <br>
> c350ia@catalina350.net <br>
> http://www.catalina350.net/mailman/listinfo/c350ia =
<o:p></o:p></span></font></p>
</blockquote>
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