New Battery - which brand??
 

Hello,

My 2009 has 35k on it and the battery is the OEM so im thinking of getting a new one.

Which brands/models are you using?

I was thinking of getting a Champion or Bosch....

Everstart Max by Wal-mart. No I am not kidding.

LOL....thats actually on my list too. I was too embarrassed to mention it. :)

i would get a maintenance free one which ever it may be.

i think first choice for me would be the red top....but then again, my 04 G is on stock battery still. :p

Costco or Optima


Optima batteries are great, but at Costco you take it in every 35 months and get a new battery for free, no BS pro rating if done within 3 years

I'm thinking the same thing myself. It seems that batteries last about 48 months and die almost without notice, so I plan on doing a preemptive strike and replacing the one in my '09 which has about 30K miles on it now and is 3 1/2 years old.
There are a few recent good threads on Bob Is The Oil Guy about battery quality:

Duralast Platinum Battery - Bob Is The Oil Guy

Optima Batteries.... who makes them? - Bob Is The Oil Guy

Which Battery Is Better Auto-Zone Or Advance - Bob Is The Oil Guy

Do you leave the windows up or down when you disconnect the battery?
I forget

Hi AJC1884,

I would stick with OEM.

+1 optima

well...i actually decided on a walmart EVERSTART MAXX, so i went to pick one up and they were all sold out. Do you believe that????
So i had to get a Champion. Wish me luck.

Gl

I used to sell Optima batteries. They are very popular but I would not put one in my car. Look for something with good warranty and buy from a reseller that will be there to look after you in a few years.

I work at East Penn Mfg, makers of the Deka brand lead acid batteries. I am a Quality Auditor and I will tell you that Optima batteries are certainly the prettiest battery on the market, but they are junk otherwise. When they first came out we ran some major engineering tests on them because our owner wanted to see if the "6pack" tech was worth looking into. The only test that those batteries beat our wet acid filled batteries in was "shake" testing. We still resell them to NAPA (we reboost them almost always once), but NAPA is slowly moving over into our AGM line. We have developed AGM batteries that cannot be beat in in anyway. AGM = absorbed glass mat - instead of acid sloshing around in the cell each plate is separated by a diaper like material that is saturated in the acid electrolyte. If you wanna put a great battery in your car look for a 9A35/85.

We also make batteries for Sears, Sams Club, Auto Zone, OReily's, NAPA, Carquest, and Advanced Auto after-market companies....arguing which of these guys makes a better battery is like comparing a Pepsi out of a bottle to Pepsi poured into a glass. The batteries are the same, only thing different is the label.

Everstart Max by Wal-mart
 

Just read back in November that the Everstart battery is the Consumers Report recommended best buy

Was this for the battery specifically or the entire purchase experience? Like others have said, buying from someplace that will standby the purchase with a warranty is clutch. A lot can go wrong in the production of these things, the tiniest hole (and I'm talking you would need to lay the separator on a light to see a pinhole) in the separator can cause a short in a cell.

Im an Optima fan! But thats just me.. I'm running one in my Honda s2000, I havent considered replacing my Z battery yet with only 6600 miles.

Just bought an optima red top this week from advanced auto, found an online coupon and it ended up being around $160. Optimas are the best imo

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I've had good luck with Auto Zone Duralast batteries in other vehicles, but don't even know if one is available for the Z.

PS...I've also heard that the Optima batteries are not what they used to be. Just my $.02 (never had one so...).

11lbs power sports battery from autozone with a duralast label on it. Deka I think makes them all, even the double priced Braille PS batteries. All weighted PS batteries have the same crank amps, size, weight, etc etc so spending the least amount is best. That's why I don't have a Braille or odessey PS.

I am 100% in belief. Actually quite a few years ago I went to one of the déka distribution centers to pick up an agm battery and when I got there the battery I needed had not yet been labeled. They had labels for each company selling the battery and asked which label I preferred.

Also agree 100% on optima. I used to run them in my race car because I was told they were the best, and also since my battery was in a sealed/ outside vented Moroso box in the trunk I felt it was double layer of protection. First one lasted a few years. Then it seemed like at some point they would only last 1 season. I had better longevity from the low grade wal mart especiale.

Has no one recommended Interstate batteries? Maybe a southern thing but I've grown up around many that swear by them. I've used them myself and that's the only one I'll replace an OEM with.


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I've used Interstate in the past and had good luck with them as well. It's been a lot of years since I used one (they didn't make one to fit our vehicles).
I would try on in the Z if one is available.

I've had great luck with interstate as well. I put a Megatron plus battery in the accord 4 years ago to replace the small undersized honda one. I've had no issues whatsoever.

I believe for 370z it's mtp-35 for our cars.

Those Grey and Black sealed AGM batteries? Yup those are all ours.

AutoZone definitely sells a 35 group sized battery and I know we make 9A35/85's for them bu they don't appear online. I would go ask, tell them that is what you want.

I have an Optima yellow top that I just put in my Z. I love it! I didn't feel the need to research a WHOLE lot into battery tech but, there are some note worthy things mentioned in this thread.

If you live in the South, Advance Auto Parts's Autocraft Silver battery is a great buy. You can usually find a $40 or $50 off $100 coupon that puts the price of a Silver battery down to $60 or so.

The Silver does not have the Cold Cranking Amps (CCA) of their Gold battery, but that is not a problem for a southern car. Battery makers these days know CCA is what sells, so they pack the batteries with more, albeit thinner, lead plates. Thinner lead plates deform more when hot. This deformation causes the lead paste to shed and this is ultimately what kills a car battery. I run AAP Silvers on all of my cars and get at least 3-4 years out of them. Not bad for $60.

If you live in a colder climate and need the CCA, the Kirkland Signature battery from Costco is good but their sizes are limited.

The Everstart Max lists as 640 Cold Cranking Amps. The OEM one is listed as 700 Cold Cranking Amps. The Optima Redtop is 720 Cold Cranking Amps. Is it really worth the extra money for the Optima? and wouldn't that Walmart one be too little power really? Any thoughts on that?

My 11lbs $60 battery from autozone for a snow mobile or something has only 200-300 I think and has been fine for over a year plus a cold *** ohio winter. No battery's worth more money as Kenwood pointed out they're all the same with just a different label.

I am having issues with the Walmart battery and my Remote Start system. Guess it draws too much power. The installer recommended I go with the OEM battery as it had more power.

optima batteries are dry cell type. which means they last longer than regular batteries. I dont mind paying extra 100 bucks for battery that is going to last longer.

PS: My 370z OEM battery died on me 2 weeks ago, jump start then i went to advanced auto part store and got me an optima red battery. My previous car (350z) had an optima yellow, never had a problem with the battery. Had that battery for 6.5 years and during winter time i never had problem with start the car (last winter temp went down to -20F)

sorry for my grammar!!

THANKS DufDaddy - Great Information - :tiphat:

So Just Ask Autozone For A Duralast AGM Group 35 Battery For A 370Z - :confused:

That or a gold.
I worked for AZ for 9 years - the golds have the least issues out of any battery.

True story -
Customer comes in and asked me to check his battery.
I walk out to the truck and inspect - battery is 16 years old. one of our old golds.

I tested it - it came back bad.
He says "thanks for the test!"
He then jumps back in his truck, starts it up, and drives off.

Do with that information what you will.

I recently changed my battery for my DD and Z (and started another thread on this forum), and changed both to Duralast Gold. I was debating between the AGM and Gold, but based on limited research, I found that the Gold was the way to go, IMO.

If you also type in your vehicle information on AZ's website, it will give you the battery information, although I'm now wondering if I should have went with group 24F instead of 35 because of the CCA/CA.

Ahhh - I have been looking the same thing - from what I have found...
AGM lasts longer if the car is used infrequently (mine is stored from Nov-Apr)
Gold will sulfate more if charge is run down

In Pennsylvania seems AGM is the way to go

I went over this in your other thread...

My car is driven once a week, sometimes once every other week, but then again I’m in FL.

Yes and thank you. Maybe it’s a placebo effect, but I feel like the 24F had more “oomph” when starting the car.