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post #79 of Old 12-16-2012
chef2sail
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Re: Battery Sizing - am I crazy?

Quote:
Originally Posted by hj0516 View Post
I have read that it is better to have two 6 volt batteries in parallel rather than one 12 volt, but at twice the cost is the benefit twice as much. At about the same cost you could have two 12 volt batteries and would that be better that two 6 volt??
I am talking about deep cycle for house bank needs, I have 4 golf cart batteries now and cruise every weekend and in the marina it is on charger. I also have twin solar panels and a wind charger. Plan next year to cruise and anchor out a week or two at a time.
Any suggestions on which way is better?? Also have separate starting bank. Thanks for any help.
sailor0516
2 6 volt batteries = 220 ah at 12 volts

2 12 volt group 31 batteries have 220 ah at 12 volts

2 6 volt batteries ahs the footprint basically as 1 group 31

2 6 volts = same ah for 1/2 the space


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