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kbkindle

starting battery size

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what size starting battery should i buy how many cranking amps do i need i have yamaha 200 hpdi and of course have everything else running off of this battery. just tm on the two tm batterys. i see they make a starting battery combo that is for starting off course and also is a deep cycle also for the rest of the stuff. i think it was a wallmart battery probley should go back to a interstate that was what was in boat when i bought it new in 2002 it just know went bad maybe there is a better battery need you advice thanks

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I would get at least a group 27 Dual Purpose, I personnaly run a group 30 because I want the biggest, baddest battery I can get.

You want a dual purpose because it's designed to deliver the cranking amps your motor is going to need while still be able to withstand the constant discharging running all your electrical junk off it.

As for whose you get, that's up to you.  If you want a cheap battery that's going to give you two to three years average, those big yellow batteries at Wal-Mart are good.  Don't go to a battery shop that sells their own off brand label, most of those are imported junk.  

I like Deka's and Trojan's and have pretty gotten where that's all I will buy.

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DIs require more juice so get at least a 27 series cranking battery with at least 800 CCA.  You don't need a dual purpose you need cranks.

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Yep, that's why I run a big Dual Purpose on my 225 FICHT DFI Evinrude.  880 CCA and plenty of reserve capacity.  Straight cranking batteries while providing big CCA numbers don't hold up well in bass boats.

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Yep, that's why I run a big Dual Purpose on my 225 FICHT DFI Evinrude. 880 CCA and plenty of reserve capacity. Straight cranking batteries while providing big CCA numbers don't hold up well in bass boats.

I must be a lucky guy then.  I got 6 years out of my cranking battery on my 225 Optimax and it was still going strong when I gave it away and bought a new one.

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Guess I am in the lucky crowd too.  I put an Interstate 24M-XHD in my 200 HPDI two years ago this spring and no problems since.  It's 800 CCA and 1000 MCA.  

Shortbasser

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