[C320-list] Battery switch

[William Morack]

I bought Interstate 4Ds after my factory batteries died after 8 years. These are indeed quite a lot heavier than the ones that came with my 2005. One of the two died the first month I put them in! Of corse they replaced it, but what a pain to have to lug one of them in back to the dealer, and then reinstall the replacement bask on the boat. The closest dealer that had them was 50 miles away too. They seem to be doing well so far. I think the warranty is only like 90 days if I am not mistaken. Not very long for a $220.00 battery.

Bill Morack

FAT CAT #1058


> On Jun 9, 2017, at 9:18 AM, Warren Updike <wupdike at hotmail.com> wrote:
> 
> According to Nigel Calder who investigates power sources for boats, wet (lead acid) batteries are the least costly solution on a per amp-hour basis. If you stay with 4Ds, I recommend the Interstate SRM-4D. They are heavier than many 4Ds which are sold as commercial truck batteries for starting and low demand.
> 
> Warren and Pattie Updike
> 1994 C320 "Warr de Mar" #62
> Middle River, Chesapeake Bay
> 
> -----Original Message-----
> From: Ted Harrison [mailto:tharrison at innovations-plus.com] 
> Sent: Thursday, June 08, 2017 12:21 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Battery switch
> 
> I am going to buy batteries tonight. I want to say with the 4D's.
> 
> Do I just order AGMs or ? 
> 
> Ted Harrison
> 
>> On Jun 8, 2017, at 8:04 AM, Jeff Hare <Catalina at thehares.com> wrote:
>> 
>> In a factory setup I would suspect that the engine's positive cable goes to
>> the common lug of that 1-2-both switch so that you can use b1, b2 or both
>> batteries when starting the engine.  The engine ground/negative cable goes
>> to the first battery which then jumpers to the second so that all the
>> battery ground terminals are always connected together.  
>> 
>> The common lug of the 1-2-both also goes to the electrical panel and the
>> anchor windlass.
>> 
>> If you do not have a dedicated starting battery, I would consider that near
>> the top of the priority list depending on your sailing situation of course.
>> 
>> Searching for 'starting battery' on the C320.org website and also in the
>> discussion list archives through the "C320 Discussion List"->"Search/Browse
>> Discussions" menu also on c320.org website.
>> 
>> Doing that can remove nearly all the issues/worry about drawing the house
>> batteries down and not being able to start the engine.
>> 
>> Cheers!
>> -Jeff Hare
>> #809
>> 
>> -----Original Message-----
>> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
>> Of Ted Harrison
>> Sent: Wednesday, June 7, 2017 7:52 PM
>> To: C320-List at Catalina320.com
>> Subject: [C320-list] Battery switch
>> 
>> The battery switch has 1, 2, both. 
>> 
>> My Manuel says 1 is for battery one. 2 is for battery two. Engine cable goes
>> to both. 
>> 
>> Is that correct? 
>> 
>> Why doesn't the engine cable go directly to position 1 
>> 
>> Ted Harrison=
>> 
>