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Old 22 August 2005, 18:20   #1
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Batteries

Can someone give some advice regarding the suitable battery to fit in a rib with a 50hp outboard and GPS/sounder.

Thanks,

Nuno Canteiro
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Old 22 August 2005, 18:24   #2
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Any thing that fits, really! A 50 hp motor shouldn't need too much cranking current, but a "Leisure" battery (ie caravan spec.) should be better than a standard car battery as they are supposed to with stand full discharge better than a car battery which is built cheap, light and for maximum current in short bursts.
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Old 22 August 2005, 18:26   #3
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Sealed ?

Does the battery needs to be a sealed type ?
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Old 22 August 2005, 20:25   #4
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sorry - i dont want to steal the thred but whilst we are on the subject of bateries - has anyone ever had a battery failure out at sea.

does anyone carry backup batteries.

i was thinking of buying one of those small sealed lead acid bateries you can get in maplin if for no other reason than to get the gps and vhf powered back up.
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Old 22 August 2005, 22:58   #5
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Quote:
Originally Posted by roycruse
sorry - i dont want to steal the thred but whilst we are on the subject of bateries - has anyone ever had a battery failure out at sea.

does anyone carry backup batteries.

i was thinking of buying one of those small sealed lead acid bateries you can get in maplin if for no other reason than to get the gps and vhf powered back up.
You may as well go for one of the self contained powerpacks - they are the same price as buying just a battery if you shop around!!!
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Old 22 August 2005, 23:03   #6
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Do a proper job

why not fit two batteries with a selector switch!

I only fit Maximas to my boats but they are real dear 140 poonds each. the leisure batteries from towsure will do get two 85 amp ones for abot 70 kwid.

I see no point in carting around a powerpack which usually is not butch enough to spin the outboard and is not waterproof or damage reistant
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Old 23 August 2005, 03:06   #7
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Batteries are pretty important!. Depend what engine you have, Two stroke, Four stroke, DFI. DFI engines need quite alot of power to run the electrics so the engine can fire up. They also can take a few turns of the flywheel to get the compressor to bring the up to the right air pressure. So they will need a good battery on a cold morning.
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Old 23 August 2005, 05:35   #8
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With twin engines you can do a self jump start, all via just an isolator key.
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Old 23 August 2005, 06:40   #9
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providing you have enough grunt in the Battery to start the first one!
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Old 23 August 2005, 17:39   #10
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just back from scotland i got one of thows battery pack booster starter 35 halfords my batterys on the blink and ive a 115 hp 2 stoke loads of power turned the engine no probs about 10 times on one charge and still charged my camp light
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