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Old 06 January 2012, 17:17   #1
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Diesel batteries

The Pac came with a pair of large Halfords batteries.....one dead, one on its last legs......

Want to replace the pair......will both need to be able to crank the inboard.....the battery switch is the original / manual 1, 2, both blue sea systems type......was tempted to go for a BEP type switch like we have on the Opti, but if the blue sea was okay for Halmatic, perhaps it shpuld be good enough for us Any thoughts?

The engine is a Yanmar 6LY2a STP (440 HP) and the electronics will run to 'usual' kit - i.e HDS Plotter Sounder, VHF x2, Nav lights, Bilge pumps (x3) deck lights etc....

Can anyone advise /recommend a pair of fit and forget marine batteries that could work well....and a cheap source.....>

Cheers
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Old 06 January 2012, 17:25   #2
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Dan, give WWW>CPCBATTERIES.CO>UK a call. They are West London based but are ultra friendly and knowledgeable. They are tech aware and if they simply point you in the right direction then you'll be armed with the best knowledge in the business.
I keep defaulting back to these guys after all others promise but don't deliver. And now they are the first go to battery guys for me.
Hope this helps.
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Old 06 January 2012, 17:37   #3
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Dan, give WWW>CPCBATTERIES.CO>UK a call. They are West London based but are ultra friendly and knowledgeable. They are tech aware and if they simply point you in the right direction then you'll be armed with the best knowledge in the business.
I keep defaulting back to these guys after all others promise but don't deliver. And now they are the first go to battery guys for me.
Hope this helps.
Willl give them a try, thanks.....
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Old 06 January 2012, 17:47   #4
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Optima Blue tops are classed as dual purpose for engine starting and deep cycle.
Try Contact Multicell - Outlets in Leicester, Norwich, Evesham
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Old 06 January 2012, 17:56   #5
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Quote:
Originally Posted by bcervelo
Optima Blue tops are classed as dual purpose for engine starting and deep cycle.
Try Contact Multicell - Outlets in Leicester, Norwich, Evesham
And have you seen the price.
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Old 06 January 2012, 18:18   #6
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I always use Numax cxv 31's 1000 cold cranking amps, even fitted one in my Range rover p38 (just) also fitted in lots of boats, got a cxv 24 in my rib not enough room for the big one.
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Old 06 January 2012, 18:53   #7
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Find out what CCA you need and get them from your local garage, you don't need any fancy battery just cos its in a RIB, not unless your planning on going at any silly angles in which case a gel one would be wise.

Awaits the flak....
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Old 06 January 2012, 19:08   #8
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Optima Blue tops are classed as dual purpose for engine starting and deep cycle.
Try Contact Multicell - Outlets in Leicester, Norwich, Evesham
I replaced my generic dual purpose batteries with the Optima blue tops. I'm somewhat underwhelmed with them. I'll likely go back to standard flooded dual purpose batteries on the next go-round.

jky
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Old 07 January 2012, 05:02   #9
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like most things in life you only get what you pay for
batteries are esential pieces of kit you dont want them to fail at the wrong time
always buy from outlets that have marine experience and always buy the best available for the job or you may be endangering yourself or others when they have to come rescue you!!
cheap equipment is not best when it comes to a marine enviroment
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Old 07 January 2012, 08:49   #10
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I'm with Chewy on this one. I've always gone for sealed flooded lead acid and had no problems (both in rib and inboard hard boat). I take the view that it is a maintenance item and just replace them regardless every five years. As long as you don't abuse them, modern batteries are pretty reliable. You might need deep cycle for the domestics if it is a liveaboard, that's all.
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