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Paul1944

Blanchard, OK

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Posted: 01/12/19 10:46am Link  |  Quote  |  Print  |  Notify Moderator

I need to replace my house batteries in my 2004 Coachmen Sportscoach. I currently have four 6 volt deep cycle golf cart batteries installed, two 6 volts hooked in series to create 12 volts then the two 12 volts pairs hooked in parallel. I'm thinking I would like to install the optima maintenance-free batteries but I can't figure out which battery I need to order or how many I need. Any help will be greatly appreciated. Thanks.


Paul & Margie

MrWizard

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Posted: 01/12/19 10:59am Link  |  Quote  |  Print  |  Notify Moderator

Forget optima, those spiral wound batteries have less capacity
Four of those will give you about half of the capacity in ampHrs that you have now
Get good quality AGM batteries like full river ?


Radiate The Happy
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2oldman

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Posted: 01/12/19 11:01am Link  |  Quote  |  Print  |  Notify Moderator

Paul1944 wrote:

I would like to install the optima maintenance-free batteries
Why those?

Paul1944

Blanchard, OK

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Posted: 01/12/19 11:04am Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

Paul1944 wrote:

I would like to install the optima maintenance-free batteries
Why those?

Because they are maintenance-free, am I showing my ignorance here? Maybe there are other maintenance-free batteries that I don't know about.

2oldman

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Posted: 01/12/19 11:05am Link  |  Quote  |  Print  |  Notify Moderator

Yes, Lifeline AGM.

pianotuna

Regina, SK, Canada

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Posted: 01/12/19 11:12am Link  |  Quote  |  Print  |  Notify Moderator

Optima would be my last choice for an AGM.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Sam Spade

North Central Florida

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Posted: 01/12/19 12:19pm Link  |  Quote  |  Print  |  Notify Moderator

Paul1944 wrote:


Because they are maintenance-free, am I showing my ignorance here? Maybe there are other maintenance-free batteries that I don't know about.


Yes.

ANY AGM battery is essentially maintenance free (sealed).

A "deep cycle" AGM weighs a TON and costs a lot too.
But that's what I got last year.

When you have an "old" RV, it seems like SOMETHING goes bad every year. I don't want to have to worry about the batteries for a while.

P.S. Are you sure that you really NEED that much capacity ??


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midnightsadie

ohio

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Posted: 01/12/19 12:48pm Link  |  Quote  |  Print  |  Notify Moderator

you should NOT mix batteries old and new ,change them all.

2oldman

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Posted: 01/12/19 12:51pm Link  |  Quote  |  Print  |  Notify Moderator

midnightsadie wrote:

you should NOT mix batteries old and new ,change them all.
Yes, but that's not what he's doing.

MrWizard

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Posted: 01/12/19 01:38pm Link  |  Quote  |  Print  |  Notify Moderator

he wants to replace all (4)

he just picked the wrong battery, and is asking advice

the Optima 6 pack spiral wound are very rugged
if you have a JET SKI, or bouncing a desert buggy over rocks

but the constructions means the Optima weighs less, and has less 'LEAD', and less ampHrs useable capacity

for RV dry camping you want Maximum capacity per battery size

there are many other 'sealed' AGM batteries that will better serve your purpose other than Optima

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