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Yes, this normal. I think with monitoring, paralleling batteries on a
cruise would be fine if you have a backup way of starting the engine.
I have a portable jump starter, but better would be a dedicated
starting battery.<br>
<br>
If you had no way of sending the charging current to only one battery,
a bad battery could take all of the charge from the alternator. I
guess in an emergency one could always remove the cables from the
battery to remove it from the charge.<br>
<br>
Gene<br>
<br>
Fred Jackson wrote:
<blockquote cite="mid:380-22009621611253343@earthlink.net" type="cite">
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<div>John,</div>
<div>Both my C320 and my C36 are the same as yours in this regard.</div>
<div>Fred J.</div>
<div>Amante #2209</div>
<div> </div>
</div>
<div> </div>
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<div
style="font-family: Arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a moz-do-not-send="true" title="jvanvessem@sbcglobal.net"
href="mailto:jvanvessem@sbcglobal.net">John Van Vessem</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:
</b><a moz-do-not-send="true" title="c36list@c36ia.com"
href="mailto:c36list@c36ia.com">Catalina 36 Association Mailing List</a></div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
6/15/2009 9:26:48 PM </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
Re: [C36IA] golf cart batteries</div>
<div><br>
</div>
<font size="2">
<div
style="font-size: 12pt; font-family: times new roman,new york,times,serif;">
<div>I don't know if all 36 Catalina's are like this, I know my 32
wasn't. But my alternator (not the charger) will only charge the bank
that the switch is on. In other words if I have the selector set to 1,
battery #2 will not charge from the alternator. The only way I can
get both batteries to charge is with the switch in the <strong><em>both</em></strong>
position. This is not the case with the AC charger, both batteries
will charge no matter what the position of the selector switch.
Consequently when I sail for the day I always leave the switch in <strong><em>both
</em></strong>so that the batteries age together. If I am on an
extended cruise I will use one bank at a time and monitor both the bank
voltage and accumulated amp hour drain on the Link 10.<br>
</div>
John Van Vessem<br>
Sojourn #2295<br>
Vallejo Yacht Club
<div><br>
</div>
<div
style="font-size: 12pt; font-family: times new roman,new york,times,serif;"><br>
<div
style="font-size: 12pt; font-family: times new roman,new york,times,serif;"><font
face="Tahoma" size="2">
<hr size="1"><b><span style="font-weight: bold;">From:</span></b>
Wait Griswold <a class="moz-txt-link-rfc2396E" href="mailto:wrgriswold@gmail.com"><wrgriswold@gmail.com></a><br>
<b><span style="font-weight: bold;">To:</span></b> Catalina 36
Association Mailing List <a class="moz-txt-link-rfc2396E" href="mailto:c36list@c36ia.com"><c36list@c36ia.com></a><br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, June
12, 2009 1:18:27 PM<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [C36IA]
golf cart batteries<br>
</font><br>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">There used
to be a guy on the list named Norm that argued long and persuasively
against paralleling batteries just for that reason. He much preferred
alternating days with each bank. I think he was an electrical engineer
and was very knowledgeable.</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">Wait Griswold</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<div>
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face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr tabindex="-1" align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal"><b><font face="Tahoma" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Tahoma;">From:</span></font></b><font
face="Tahoma" size="2"><span
style="font-size: 10pt; font-family: Tahoma;">
<a class="moz-txt-link-abbreviated" href="mailto:c36list-bounces@c36ia.com">c36list-bounces@c36ia.com</a> [<a class="moz-txt-link-freetext" href="mailto:c36list-bounces@c36ia.com">mailto:c36list-bounces@c36ia.com</a>] <b><span
style="font-weight: bold;">On Behalf Of </span></b>Jeff<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, June
12, 2009 1:11 PM<br>
<b><span style="font-weight: bold;">To:</span></b> 'Catalina 36
Association Mailing List'<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [C36IA]
golf cart batteries</span></font></p>
</div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
<p class="MsoNormal"><font color="blue" face="Arial" size="2"><span
style="font-size: 10pt; color: blue; font-family: Arial;">There's one
problem any time your operate with the battery switch on "ALL",
and this applies to both two and four battery configurations. If you
have a bad or weak battery, it will draw down the good one(s). In
essence, the good battery tries unsuccessfully to charge to bad one,
and you can end up with all the batteries down.</span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
<p class="MsoNormal"><font color="blue" face="Arial" size="2"><span
style="font-size: 10pt; color: blue; font-family: Arial;">Jeff</span></font></p>
<p class="MsoNormal"><font color="blue" face="Arial" size="2"><span
style="font-size: 10pt; color: blue; font-family: Arial;">Con Brio</span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
<div class="MsoNormal" style="text-align: center;" align="center"><font
face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr tabindex="-1" align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal" style="margin-bottom: 12pt;"><b><font
face="Tahoma" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Tahoma;">From:</span></font></b><font
face="Tahoma" size="2"><span
style="font-size: 10pt; font-family: Tahoma;">
<a class="moz-txt-link-abbreviated" href="mailto:c36list-bounces@c36ia.com">c36list-bounces@c36ia.com</a> [<a class="moz-txt-link-freetext" href="mailto:c36list-bounces@c36ia.com">mailto:c36list-bounces@c36ia.com</a>] <b><span
style="font-weight: bold;">On Behalf Of </span></b>Wait Griswold<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, June
12, 2009 3:01 PM<br>
<b><span style="font-weight: bold;">To:</span></b> 'Catalina 36
Association Mailing List'<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [C36IA]
golf cart batteries</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">I think that
in theory you will divide the load equally between the two banks. The
batteries will not know if they are wired in parallel directly or
through the switch. I say in theory because the batteries may not be
exactly equal and I think that could influence the division of the
load. In saying that I am getting lost in my mind and considering
things that really don’t matter but are interesting to think about.
That quirk of mine drives the Admiral crazy. If they are not equal,
they will be close enough not to matter. </span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">Remember
that golf cart batteries are true deep cycle batteries and can be
safely drawn further than marine deep cycle batteries that are not
really deep cycle. I used to know the recommended safe level for GC
batteries but now I am not sure. I think it was 50% or maybe lower (I
seem to vaguely remember 20%); and that can be repeated hundreds of
times.</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">Wait Griswold</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<div>
<div class="MsoNormal" style="text-align: center;" align="center"><font
face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr tabindex="-1" align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal"><b><font face="Tahoma" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Tahoma;">From:</span></font></b><font
face="Tahoma" size="2"><span
style="font-size: 10pt; font-family: Tahoma;">
<a class="moz-txt-link-abbreviated" href="mailto:c36list-bounces@c36ia.com">c36list-bounces@c36ia.com</a> [<a class="moz-txt-link-freetext" href="mailto:c36list-bounces@c36ia.com">mailto:c36list-bounces@c36ia.com</a>] <b><span
style="font-weight: bold;">On Behalf Of </span></b>Bill Hague<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, June
12, 2009 12:43 PM<br>
<b><span style="font-weight: bold;">To:</span></b> Catalina 36
Association Mailing List<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [C36IA]
golf cart batteries</span></font></p>
</div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Wait and Gene,</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Our estimated use is 100amps/day. If I
connected them in series, 2 to a bank, and chose "all "on the battery
selection switch would I draw 50amps from each bank.I am trying to
reduce the percentage of amps taken from each bank.. 50 amps from each
bank would be about 20% of capacity from each bank. I don't want to
take 100 amps ,40%, from one of the banks.</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Bill </span></font></p>
</div>
<blockquote
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<div>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">----- Original Message
----- </span></font></p>
</div>
<div>
<p class="MsoNormal"
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"><b><font
face="Arial" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Arial;">From:</span></font></b><font
face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> <a
moz-do-not-send="true" title="wrgriswold@gmail.com"
href="mailto:wrgriswold@gmail.com" target="_blank" rel="nofollow"
ymailto="mailto:wrgriswold@gmail.com">Wait Griswold</a> </span></font></p>
</div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Arial;">To:</span></font></b><font
face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> <a
moz-do-not-send="true" title="c36list@c36ia.com"
href="mailto:c36list@c36ia.com" target="_blank" rel="nofollow"
ymailto="mailto:c36list@c36ia.com">'Catalina 36 Association Mailing
List'</a> </span></font></p>
</div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Arial;">Sent:</span></font></b><font
face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> Friday, June 12, 2009
3:15 PM</span></font></p>
</div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Arial;">Subject:</span></font></b><font
face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> Re: [C36IA] golf cart
batteries</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
</div>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">Bill,</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">I would wire
the new “12V” (actually 2 6 V) batteries just like the 4D’s
through the existing switch. Then they can be paralleled just like the
4D’s or used individually if necessary, if for example one of the 6V
batteries failed. In rereading your email, maybe that is what you
meant.</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;">Wait Griswold</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; color: navy; font-family: Arial;"></span></font> </p>
<div>
<div class="MsoNormal" style="text-align: center;" align="center"><font
face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr tabindex="-1" align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal"><b><font face="Tahoma" size="2"><span
style="font-weight: bold; font-size: 10pt; font-family: Tahoma;">From:</span></font></b><font
face="Tahoma" size="2"><span
style="font-size: 10pt; font-family: Tahoma;">
<a class="moz-txt-link-abbreviated" href="mailto:c36list-bounces@c36ia.com">c36list-bounces@c36ia.com</a> [<a class="moz-txt-link-freetext" href="mailto:c36list-bounces@c36ia.com">mailto:c36list-bounces@c36ia.com</a>] <b><span
style="font-weight: bold;">On Behalf Of </span></b>Bill Hague<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, June
12, 2009 10:57 AM<br>
<b><span style="font-weight: bold;">To:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:c36list@c36ia.com">c36list@c36ia.com</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> [C36IA]
golf cart batteries</span></font></p>
</div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"></span></font> </p>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Thanks to Gene, Bob & Bill for the
suggestions, and thank you to Gene and Mike for the photo's. I picked
up the batteries this morning so I can now start measuring for the
cables.</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">A few more questions:</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">1) Did you use 2/0 cables?</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">2)I had my 4d's connected in parallel to
increase amp hour capacity. Is there any downside to doing this with
the GC, after they are connected in series.My goal would be to reduce
the percentage of amp hours removed in between charges?</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Bill Miller,</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">I thought you were still using the 4D's?</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Thanks</span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">Bill</span></font></p>
</div>
<div class="MsoNormal" style="text-align: center;" align="center"><font
face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr align="center" size="2" width="100%"></span></font></div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;">_______________________________________________<br>
C36list mailing list<br>
<a class="moz-txt-link-abbreviated" href="mailto:C36list@c36ia.com">C36list@c36ia.com</a><br>
<a class="moz-txt-link-freetext" href="http://www.c36ia.com/cgi-bin/mailman/listinfo/c36list">http://www.c36ia.com/cgi-bin/mailman/listinfo/c36list</a></span></font></p>
</blockquote>
</div>
</div>
</div>
</div>
</font></blockquote>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
C36list mailing list
<a class="moz-txt-link-abbreviated" href="mailto:C36list@c36ia.com">C36list@c36ia.com</a>
<a class="moz-txt-link-freetext" href="http://www.c36ia.com/cgi-bin/mailman/listinfo/c36list">http://www.c36ia.com/cgi-bin/mailman/listinfo/c36list</a>
</pre>
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