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Discussion Starter · #1 ·
After meticulous recording of very precise measurements (my Mk1. eyeball and tape measure) I concluded that Optimas D31A (yellow top) would fit. This is their biggest yellow, it weighs in at 65 lbs! The only thing I needed were new "j" bolts at 10" inches long, flatten one of the little tabs on the battery tray and I flattened the "s" strap that runs from the hold down clamp the fender wall.

Now I can have all night discussions (drinking) out on the ranch while listening to XM.

Cheers

Chris
 

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Looks good!, Thanks for seeing if it fits. Now quit teasing and "I WANT MY OPTIMA".....
 

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Have you done any testing of its capabilities yet? I have a Red Top, and I was able to power my 27" TV off an inverter, PLUS the 400W stereo pumping out the tunes/commentary for 2 1/2 hours straight before I had to start it the last time I tailgated. The low battery alarm kicked on on the inverter, so I thought I would have a problem starting, but NOOOOOO... It cranked like a champ and fired right up! Optima's DEFINITELY are the SH!T!! I'm going to get a second one, but I can't decide whether I should get a Yellow or Blue Top.. I know the Blue's the marine version, but I like the terminal posts.. I haven't compared the capacities yet though... What's the Amp-hour and CA/CCA ratings on the Yellow? I can't read it.. ;D ;D

Matt {peace}
 

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Discussion Starter · #4 ·
1125 CCA's and 75 amp hours.

I haven't tested it yet but if the weather is good this weekend my buddy and I may go "fishing and hunting"

I thought about the blue top but I wont have a winch for a long time yet and I didn't think it would hold up well to the constant charging of RC use. I may add another one once I get the new bumper/brush guard/lights/ winch........geeez where is that lottery ticket?

Cheers

Chris
 

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TaZMaNiaK said:
What's the Amp-hour and CA/CCA ratings on the Yellow? I can't read it.. ;D ;D

Matt {peace}
Keep in mind his yellow top is the new, bigger one. The original, smaller yellow top was lower CA/CCA.
I'm not 100% on this, but I think the blue tops are basically the same as the original yellow tops, but with the studs on the top termials.
 

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I have a size 31 NAPA commercial battery in my '93 Cummins and it fit without any mods to the battery tray or the hold down appliances. Just my $.02 worth...
 

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v737d said:
1125 CCA's and 75 amp hours.
{bigeyes} {bigeyes} WOW!! {bigeyes} {bigeyes} Now THAT'S a battery!!! My Red top is 950CA/800CCA... You NEVER see that many CCA's in a deep cycle! At 1125 CCA it's gotta be like 1300 or 1400 CA! That thing could run a refrigerator for a few days and not even break a sweat! I think I could forego the terminal studs for that sucker... What'd it set you back?

Matt {peace}
 

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I thought that this was a Nissan thread....
I like this battery a lot. I think that audiophiles use them because they can handle lots of speakers and amps.

Dunner
 

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Discussion Starter · #13 ·
It was $197.00 with free shipping. It hurt the wallet a bit, but I was up to my eyeballs with the old one! All my years in the AF have tought me that when one thing goes bad you must swing the pendulum 100% in the opposite direction---hence a big Optima!

www.1st-optima-batteries.com/

Yes, yes, yes I know it has cruise control (it works too!) and intact wire looms. She is really stock except for the XM radio, a stock af/fm cass from a '98 Durango and new Polk speakers. Oh, yah she is also 1 wheel drive, makes for fun times on muddy roads
 

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Ok, after looking at the table at that link above, I'm gathering the one you have is the D31A, and it's 1125CA/900CCA, which still beats the Red top hands down! There is a new Blue top version of that one - D31M, which is spec'd exactly the same as the one you have... So I can have terminal studs! ;D ;D $197 is a little higher than I need to reach right now, especially given the performance I'm getting from my Red Top so far... Thanks for the info!

Matt {peace}
 

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I will stick with the twin red tops that fit on the stock tray and have more cranking amps that that yellow and cost less
 

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That was my original thought, but if you look at the specs, the Red top is 980CA/750CCA/55Ah,the D34 Yellow top is 870CA/650CCA/55Ah. The D31A Yellow, which is what 737 has, is 1125CA/900CCA/75Ah, with the D34M Blue top being the same. The group 31 yellow and blue are definitely superior batteries. Their CCA is just 80 less than the Red top's CA. The Red tops also say they shouldn't be deep-cycled. Since I tailgate, I would need that, but since I just bought the Red, I would add the group 31 blue for deep-cycling.If you were buying your first Optima though, skip the red and shell out the extra $70 for the Yellow or Blue group 31

Matt {peace}
 

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v737D---what is the reserve capacity on that optima? Has anyone had any experience with Odyssey or Interstate? What is the difference between the red, blue and yellow top styles of Optima?
 
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