[C320-list] [Spam:SpamScore 3.0] Re: Are 6V Batteries Superior To 12V Batteries

[turk]

Ahh, isn't that what I said?

On Jun 27, 2006, at 12:25 AM, <crashley at gte.net> wrote:

> This is not correct. 2 series 6V, 200 Ah batteries create a single  
> 12V, 200 Ah battery.
>
> Here's an equation for you:
>
> P = C * N * Vcell * DOD
>
> where P = watts hours extracted
> C = capacity (Ah)
> N = number of series cells (6 or 12)
> Vcell = cell voltage on discharge (~1 V/cell)
> DOD = depth of discharge (0 to 1 , 1 = 100%)
>
> CRA
> Rosebud #882
>
> ----- Original Message ----- From: "turk" <turk2 at ZOOMINTERNET.NET>
> To: "C320-List" <C320-List at catalina320.com>
> Sent: Sunday, June 25, 2006 7:00 PM
> Subject: Re: [C320-list] [Spam:SpamScore 3.0] Re: Are 6V Batteries  
> Superior To 12V Batteries
>
>
>> Just remember when you run 2 - 200 amp hour 6v batteries in  
>> series,  to get 12 volts, each 6v 200 amp hour battery contributes  
>> only 100  amp hours at the new 12v rate.   Hmmmm, there's an  
>> equation for this.
>>
>>
>>
>> On Jun 25, 2006, at 9:50 PM, Warren Updike wrote:
>>
>>> I can't disagree with much that's been said.  However, I've not  
>>> see  the arguement on price and capacity.  I don't know why it is  
>>> but I understand golf cart batteries have about 200 AH capacity.   
>>> Also,  golf cart batteries can be found at Sam's Club, BJ's, and  
>>> I presume  CostCo for quite a bit less than equivalent 12V 4D  
>>> from the likes  of BoatUS. Price of about $60 seems to ring a bell.
>>>
>>> A number of people have replaced two 4Ds with four golf cart   
>>> batteries. Total amp hour capacity goes from about 270 to 400+  
>>> AH   for less money. Unless there is a kickker, that sounds like  
>>> a good  deal.  Compare the dimensions of the golf carts vs 4Ds.   
>>> I  understand they are a bit taller, but otherwise fit in the  
>>> same  horizontal space.
>>>
>>> I chartered a 52' Tarten in BVI and the captain said he has 12  
>>> 6V  golf cart batteries on board because they are much less  
>>> expensive  to buy, weigh less (easier to install/remove,) and  
>>> have more  reserve capacity than equivalent marine deep-cycle  
>>> batteries.
>>>
>>> Warren & Pattie Updike
>>> C320, #62, 1994, "Warr De Mar"
>>> Frog Mortar Creek, Middle River
>>> Chesapeake Bay
>>>
>>
>>
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