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Old 20 January 2011, 15:33   #1
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which battery

have just purchased a rib which was kept in the south of france for 10 years, 90hrs use, the battery is goosed... not an issue... engine is mariner 90hp do i buy lesuire, heavy duty, new ,second hand, big 110amp or small 85 amp gel, water, acid, i am lost on this subject any feedback please ...
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Old 20 January 2011, 15:55   #2
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Originally Posted by rayfish2 View Post
have just purchased a rib which was kept in the south of france for 10 years, 90hrs use, the battery is goosed... not an issue... engine is mariner 90hp do i buy lesuire, heavy duty, new ,second hand, big 110amp or small 85 amp gel, water, acid, i am lost on this subject any feedback please ...
Hi rayfish i,v got 85amp leisure on mine with 70hp engine, that dose the job ,leisure hold the charge a lot longer than other battery,s i,m told, hope that helps
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Old 20 January 2011, 16:04   #3
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cheers hadd, will be running plotter fishfinder combo, vhf ect, of the 1 batt, more in summer than winter, do you remove yours in the winter...
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Old 20 January 2011, 16:05   #4
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I just use an 80amphr standard flooded cell battery but I think whatever you buy the trick is to look after it, ie keep the clamps clean and tight and the battery always fully charged with a smart charger, then they seem to last for years then.

Perhaps the best type of battery is a AGM and squadron do a great battery that is fitted to some expensive cars.

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Old 20 January 2011, 16:30   #5
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I've always bought basic sealed for life lead acid 'leisure' batteries and never had a problem yet. Make sure they don't get heavily discharged and you should be fine. An 85AH would be fine for your 90.
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Old 20 January 2011, 16:39   #6
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i take it lack of use will discharge a battery over time, do you charge back up to top up, would a small solar charger do this when parked up between trips...
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Old 20 January 2011, 16:45   #7
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I'd say two small ones or one big one. Look after them and the type isn't such an issue.
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Old 20 January 2011, 16:58   #8
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by 1 big one, you thinking of 110 amp lesuire or landrover type battery, or 2 small ones on a switch over system, got plenty of room under console for both....
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Old 20 January 2011, 17:09   #9
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I'd be tempted to get two batteries for the double redundancy. Get 55ah ones and use them together for every day use. If you're at sea and using electrics heavily (like I do) for any length of time with the engine off, you can select just one battery knowing that you have a second for starting purposes.

I would go for a combination battery. A deep cycle with high cranking amps. I bought mine off of ebay at a very reasonable price a number of years ago.

http://cgi.ebay.co.uk/NUMAX-MV22MF-1...item483d2994b3

http://cgi.ebay.co.uk/DURITE-MARINE-...item56403dc236
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Old 21 January 2011, 03:20   #10
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Being picky the parameter you should be looking at is CCA, cold cranking amps. This will vary for the battery type, whether it is deep discharge, wet, AGM etc. but should be quoted for whatever battery you go for. Get the CCA requirement for your engine and match or better this figure with whatever battery (batteries) you get. Alternatively, just go for f__king big one
Going for my anorak now..................
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