I found my reference and provided a link. It also shows the "better way" for a 1-ALL-2 arrangement.
I guess the risk of switching the batteries is the possibility of overshooting to OFF or simply turning the wrong way to OFF. As I recall Edd just recently had a problem where his switch terminals were crumbling. So switching to a degraded terminal could have the same effect as going to OFF. Rick, What about external regulators? Are they just as subject to being ruined? Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Sep 29, 2014 8:48 AM, "Rick Brass via CnC-List" <cnc-list@cnc-list.com> wrote: > When I started cruising in the early 90s, the commonly recommended battery > configuration was to have equal size batteries and designate the banks 1 > and 2. You either started the engine and charged batteries using ALL, then > switched to 1 or 2 after the engine was turned off, or you used 1 > exclusively on odd number days and 2 on even number days. > > But small battery size in comparison to increasing loads from things like > refrigeration and radar has caused a lot of dead batteries. So there has > been a shift to the modern convention of having a small dedicated starting > battery and a much larger house bank. > > There are much better ways to configure and charge a small start large > house arrangement, but the 1-ALL-2 switch is still pretty common and > effective if you pay attention. And new switches are "make before break" > designs so you don't need to worry about killing the diodes in the > regulator if you have the proper switch. > > Rick Brass > > Sent from my iPad > > On Sep 28, 2014, at 18:26, dwight via CnC-List <cnc-list@cnc-list.com> > wrote: > > Jonathan > > > > From your statement "Rememberwas to have equal sized batteries and > designate them as bank 1 & 2 not to switch the 1-ALL-2 when running the > engine" > > > > If position 1 is for start and position 2 is for house, considering the > statement above how does one switch from position 1 to position 2 for > charging the house bank with the alternator while steaming. > > > > Dwight Veinot > > C&C 35MKII, Alianna > > Head of St. Margaret's Bay, NS > > > ------------------------------ > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com > <cnc-list-boun...@cnc-list.com>] *On Behalf Of *Josh Muckley via CnC-List > *Sent:* September 28, 2014 5:10 PM > *To:* C&C List; Indigo > *Subject:* Re: Stus-List Boat Batteries > > > > +1 to Rick's comments. > > IMO you should get 2 of the largest and highest Amp-hour (heaviest) > "deep-cycle" batteries that will fit in your compartment. Use them > interchangeably to start and run house loads. Others have suggested > switching the 1-ALL-2 selector based on the odd/even day of the week to > equalize run time. > > There are things you can do to improve your setup but if the exsisting > setup has worked without issue for 12 years then I say stick with it. > > Remember not to switch the 1-ALL-2 when running the engine. Doing so can > momentarily break the charging circuit and blow the diodes/regulator in the > alternator. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Sep 28, 2014 10:47 AM, "Indigo via CnC-List" <cnc-list@cnc-list.com> > wrote: > > Looks like I need new batteries! I have lived for 12 years with two > batteries - one used for house and the other kept in reserve via off-1-all > -2 switch. > > Would like to have a dedicated starting battery in addition to two > deep-cells but do not see how I can fit the three in the locker under the > quarter berth - and am reluctant to give up any other locker space. - so it > looks like I will stick to the two. > > I googling marine batteries I see that there are dual purpose ones > available. Anyone know if this is just a marketing "hoax". In particular > Batteries Plus have a Group 27 dual purpose Duracell battery for $95 - > seems like a steal - or am I going to be disappointed with how long I can > expect it to last (I presume all group. 27 give out the same amp/hours - or > do I have to watch out there? > > -- > Jonathan > Indigo C&C 35III > SOUTHPORT CT > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2014.0.4765 / Virus Database: 4025/8285 - Release Date: 09/27/14 > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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