Bosunsmate
Admiral
- Joined
- Apr 7, 2012
- Messages
- 6,135
Hi,ive a evinrude 35hp electric start only.
It lacks the battery power to start after i have had it on my battery charger but if i jump start the motor from another battery the original battery will then work alright for the rest of the day even after a very long break fishing. So im not sure what thats about but i guess its saying my charging system in the motors ok.
Im going to replace the battery as it wont start the boat the next day so isnt holding charge, im therefore wondering what size battery i should use.
I dont have any devices to run when at sea, apart from a small bilge pump which i only run when the motors running. I dont want a heavy battery as i dont want the extra concentrated weight especially on an already imperfect integrity fibreglass hull and of course my big reason is the more CCA the more they cost.
How many cold cranking amp minimum have people found is sufficient? Im picking i dont need to pay much attention to reserve capacity as the battery isnt being used when i have the engine off. I see people with small petrol 4cylinder cars use around 300cca so id thought that would be more than enough for a 2cylinder outboard motor with no camshaft valves etc but then again batteries i see on boats tend to be up in the 550cca and above, but maybe thats due to battery salesmans pitch
thanks
It lacks the battery power to start after i have had it on my battery charger but if i jump start the motor from another battery the original battery will then work alright for the rest of the day even after a very long break fishing. So im not sure what thats about but i guess its saying my charging system in the motors ok.
Im going to replace the battery as it wont start the boat the next day so isnt holding charge, im therefore wondering what size battery i should use.
I dont have any devices to run when at sea, apart from a small bilge pump which i only run when the motors running. I dont want a heavy battery as i dont want the extra concentrated weight especially on an already imperfect integrity fibreglass hull and of course my big reason is the more CCA the more they cost.
How many cold cranking amp minimum have people found is sufficient? Im picking i dont need to pay much attention to reserve capacity as the battery isnt being used when i have the engine off. I see people with small petrol 4cylinder cars use around 300cca so id thought that would be more than enough for a 2cylinder outboard motor with no camshaft valves etc but then again batteries i see on boats tend to be up in the 550cca and above, but maybe thats due to battery salesmans pitch
thanks
