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Old 21 July 2008, 10:06   #1
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boat battery

Hi
my battery is knackered on avon searider merc 50 electric start what amp replacement do i need ?
also does a car battery do ?or do i need leisure battery
theres nothing written on the old one!
thanks
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Old 21 July 2008, 10:28   #2
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I used a leisure battery on mine and it was fine-the starter doesn't need shedloads of power on a 50hp 2 stroke.
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Old 21 July 2008, 10:45   #3
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thanks what sort of amp would a 100 do the job cheers
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Old 22 July 2008, 05:47   #4
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I've only got a 37AH battery on my 50HP Yamaha (electric start) and that is fine.
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Old 22 July 2008, 07:14   #5
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I was using a 57 AH on a 90 2 st with no problems but have recently changed to a "proper" 85 AH marine battery.

So I guess a 100 is very OTT on a 50hp

Ian
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Old 22 July 2008, 07:40   #6
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I ran a 55HP Triple cylinder Suzuki 2-Stroke from a very small Halfords car battery for 3 years without an issue.

I can't remember the AH rating but it was very small I think @40AH

Nasher.
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Old 22 July 2008, 16:32   #7
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Cheapest one from Halfords

I used the cheapest one I could get from Halfords on my 90hp 2 stroke with no problems.
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Old 23 July 2008, 11:49   #8
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thanks for all replys ,i purchased a 75amp hour battery from local car shop
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