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Posts: 46
| I had authorized service center tell me that I need a starting battery with at least 700 CCA. I’m skeptical and await advice. Thanks |
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Posts: 199
| You think it's less? |
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Location: Contrarian Island | you should easily be able to do a search and find out how much your particular outboard requires, I run a 31 agm with 700. no problems starting a 175 Suzuki 4 stroke. |
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Posts: 46
| Muskie Gal - 12/20/2017 4:14 PM
You think it's less?
It’s just that most of not all of the marine starting batts at bass pro and farm and fleet are all less than that. Farm and fleet has a page battery that’s 550.
Will try to research my motor needs on line as suggested |
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| Gipper - 12/20/2017 5:10 PM
I had authorized service center tell me that I need a starting battery with at least 700 CCA. I’m skeptical and await advice. Thanks
My 2-stroke 50 HP Merc's manual says it requires a 350 CCA battery as a minimum. And this is a motor that can be pull started... A 700 CCA battery doesn't sound too big if you have a larger HP, 4-stroke or supercharged motor. |
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Posts: 734
Location: Watertown, MN | Yes depends on what motor you running, if you running 200+ and type of motor makes a big different, My friend who spend 20 years of merc tech informed me need more CCA for those big motors. |
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Posts: 481
Location: Northern Illinois | What size engine do you run? My 150 V-rod requires 800 MCA or 1000 CCA. |
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Posts: 46
| RLSea - 12/20/2017 8:53 PM
What size engine do you run? My 150 V-rod requires 800 MCA or 1000 CCA.
I have a 75 etec. I learned a couple of things recently. When in doubt look at engine specs which is 640 cca minimum. I’m told the injectors require heavy duty batts so I’m going with 800 cca minimum. Probably 1000. |
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Location: Contrarian Island | 1000 is overkill. if you get one with 750 to 800 it will be plenty.....no clue where you live but if you are near a Sams Club they have a duracell 31 agm with 800, which I am 99.9% sure is the same battery I have from Blains Farm and Fleet... Duration 31 agm, has been a great battery, about 185 bux.
Edited by BNelson 12/27/2017 10:06 AM
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Posts: 1209
| With a 250 Optimax pro xs you need 800cca or 1000mca = marine cranking amps. Just some bs way to rate it like Valentine’s Day |
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Posts: 114
| Had to look this up...hopefully this maybe helpful to others:
"MARINE CRANKING AMPS (MCA)
Batteries designed for marine use may be rated at MCA instead of CCA. The MCA rating method measures battery output at 32o F., not 0o F. A battery's MCA rating will be one-third higher than its CCA rating would be.
To compare two batteries when one has an MCA rating and the other has a CCA rating. multiply the CCA rating by 1.3 for the equivalent MCA rating. Or, multiply the MCA rating by 0.77 for the equivalent CCA rating." |
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Posts: 481
Location: Northern Illinois | Thanks, JMacD. I had to look it up myself and sure enough, it appears my Mercury manual is either wrong or misleading (both). It says what I stated above: 800 MCA or 1000 CCA recommended. The battery in my boat is an Intimidator SM HD Deep Cycle AGM battery rated at - you guessed it - 1000 MCA and 800 CCA. No wonder there is confusion. |
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Posts: 134
| I don't understand this debate? It sounds like some of you are wanting to risk being stranded or risk damage to your expensive outboard engine over a few dollars. I'm not suggesting wasting money by buying the biggest most expensive one known to mankind. However why not error on the safe side, I run a Yamaha 250SHO according to the manual 512cca is minimum with 180rc, says right in "engine cannot be started if battery voltage is to low" . I run an interstate 31AGM7, its a 810cca battery with 190rc, why because it's the biggest interstate they make and I can fit in its space, I also run 4graphs, fish tournaments, fish in Canada and don't want to be stranded due to a low/weak battery. I also have a jumper switch wired in incase that's not enough. (have had to use it) Best bet buy one that fits in your boat and you can afford it and preferably big, at least more than outboard minimum. Just my 32¢ worth.
Edited by BBT 1/3/2018 11:23 AM
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Posts: 297
Location: Not where I want to be! | Check this battery out. Reasonably priced and huge power. Commercial grade so it will take the abuse of waves and trailering.
https://www.napaonline.com/en/p/NBE7234 |
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Location: Northern Illinois | Bass Boat Central has all the information you could ever want on batteries and specs.
Edited by muskyhunter07 1/3/2018 1:08 PM
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Location: Contrarian Island | agree with bbt, fit the biggest battery you can in the boat ... personally run 31 AGMs and that is sufficient to run 3 big lowrances, 4 speaker stereo, livewell all day no issues ever..any motor when running will juice up the battery most guys start their outboard at least a few x a day, which is why you don't "have" to have a huge battery for a 75 hp outboard as the original poster has.
Edited by BNelson 1/3/2018 1:20 PM
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Posts: 859
Location: MN | I got the same advise above from Brad last year. I moved from a standard size 24 to a size 31 AGM for my starting battery. I'm so happy I did. I am running a 12v system on my boat so it was Great in Canada to not have to worry about charging my rear battery if I didn't have time. Plus I always know I can pull it forward if my other one was running low. |
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