Nissan 370Z Forum - Battery suggestion for 2020?

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- - Battery suggestion for 2020? (http://www.the370z.com/engine-drivetrain/133528-battery-suggestion-2020-a.html)

Quote:

Originally Posted by ZoomZ (Post 4048559)

Was there a thread on the compatibilty of AGM and our charging system?

From what I have read and researched, there is no way to get 14.4-14.8vdc required to keep an AGM charged.

Our IPDM and charging system does the typical 13.8-14.2 for standard Lead acid battery. Not to mention it cycles the charge to save fuel. (SMH)

Are you saying the 370Z charging system won't keep the AGM 35 type battery fully charged leading to a premature failure?? I can't believe all of the auto parts stores would recommend this battery if there were problems reported
:confused:

Quote:

Originally Posted by LennyK (Post 4048598)

I didn't say anything about premature failures. Just that the battery will never be charged to it's capacity. If the AGM drops below 10.5vdc threshold then it may be irreversable.

Autoparts stores don't know everything. or understand specific vehicles quirks.

There is alot of disscusion about this on the web. Specifically Nissan, because they all seem to have same type of charging architecture.

The supposed rule of thumb is (usually), if the car came with Lead Acid Flooded, stick with that. Likewise for AGM. So the OEM dealers tell me.

I'm guessing you'll get FLA with new cars because they are cheaper and lighter than AGM.

I thoght there was a thread on this but it can be from another forum.

This is from Odysee:

A. If the battery is used in a starting application, the alternator should provide between 14.2 and 14.5 volts at the battery terminals. In cycling applications, the absorb voltage should be between 14.4 and 14.8 volts, while the float setting (if applicable) should be between 13.5 and 13.8 volts.

The problem is that the Nissan IPDM controls the amount of charge to the batter based on demand. Put a voltmeter on you r battery or observe through a OBD scanner how much the volatge will fluctuate at the battery whil ecar is running and varying the accessory load.

Read 3rd post down (mr Bills) :

https://www.thenewx.org/threads/dieh...oblems.191273/

Quote:

Originally Posted by LennyK (Post 4048598)

I think your needlessly worrying too much about it and over thinking. Many many people have been using AGM batteries in their cars for many many years. My first AGM, an Optimum Yellow top, in the Z lasted 5+ years probably could have lasted a little longer, had some electrical issues that may have shortened the life unnecessarily.

About the only things that are going to damage any type of car lead acid battery is extreme temps and deep discharges with rapid recharges. As with most things the most expensive batteries are probably overpriced for what you need and the cheapest probably too some shortcuts to get there, stick with the middle of the road or a bit above and you'll be happy with an major brand.

My story:

( Click to show/hide )

I agree. I just like to find out eveything i can and learn in the process. I would really love to do do some real world testing to prove this concern.

In the end, it seems that for cost and weight, optima would have been the best choice. Of course we know quality has been reduced.

They are still making Optima and still in business. So who knows. I'm gonna research the lithium route and see where that takes me. I'm not paying $1000 for a battery or having to upgrade a charging system.

Quote:

Originally Posted by LennyK (Post 4048598)

I personally don't take advice from any local auto parts store. I'm sure there are knowledgeable people that work there, but most are kids just looking for a paycheck and don't give a flying f*ck about learning the sh!t.

You live in an age where a plethora of information is available at your fingertips and easily accessible. I, myself, do tons of research, and then narrow my questions on any given topic.

I've been using Duralast Gold in all my cars and no issues. Batteries average lifespan for me is about 5 to 6 years.

Quote:

Originally Posted by vtec to vvel (Post 4048680)

I've been using Duralast Gold in all my cars and no issues. Batteries average lifespan for me is about 5 to 6 years.

This is great. I just bought an AC Delco 35PS for my Murano. Based on my research, and price point in Canadian $$, it's the same price as the DG. I paid $206 cdn all in.

Upon further comparison, I see they look identical (website images are even same) and have same performance numbers.

My AC Delco battery case is stamped "Made in Mexico". So...

https://www.autozone.com/batteries-s...dlg/115788_0_0

https://batterysales.com/product/35ps-acdelco/

Quote:

Originally Posted by ZoomZ (Post 4048730)

The crazy part is, these same exact batteries were 50% less in 2020 right before COVID came to North America. IIRC, the DG Battery came to about $120 with the core charge.

Quote:

Originally Posted by vtec to vvel (Post 4048744)

The crazy part is, these same exact batteries were 50% less in 2020 right before COVID came to North America. IIRC, the DG Battery came to about $120 with the core charge.

Don't remind me. It did cost $150 dollars a piece for the 2 batteries in my truck in 2019. The same batteries are now $215 a piece. Both my diesel trucks batteries are 5 yrs old. Not looking forward to that bill. High quality AGM batteries are $258 a piece. Ugg

Quote:

Originally Posted by Spooler (Post 4048745)

The motorhome had 6 batteries. 2 engine start and 4 house batteries. All AGM. Glad I don't have that bitch anymore.

Quote:

Originally Posted by Rusty (Post 4048748)

The motorhome had 6 batteries. 2 engine start and 4 house batteries. All AGM. Glad I don't have that bitch anymore.

Makes my lithium battery for my Z that came with a high quality battery tender and a bluetooth monitor feel cheap. LOL Plus, you had to replace them all at once. Engine batteries together and then the house batteries together. No fun.

Quote:

Originally Posted by Spooler (Post 4048751)

In the time I owned it. I had to change the batteries twice. $1000 at a time.

I can't recommend lithium enough. One of my fav mods:

http://www.the370z.com/track-autocro...xperience.html

Hit up CJM/Phunk

Quote:

Originally Posted by OptionZero (Post 4048770)

I can't recommend lithium enough. One of my fav mods:

http://www.the370z.com/track-autocro...xperience.html

Hit up CJM/Phunk

I like mine also. It's the silly mods that will put a smile on your face.

Quote:

Originally Posted by OptionZero (Post 4048770)

I can't recommend lithium enough. One of my fav mods:

http://www.the370z.com/track-autocro...xperience.html

Hit up CJM/Phunk

Quote:

Originally Posted by Spooler (Post 4048775)

I like mine also. It's the silly mods that will put a smile on your face.

I've read that lithium batteries are heat sensitive. When I lived in FL, it got into the triple digits during the summer, esp. with the roads being blacktop and with the humidity.

That and I also read you have to be very careful when placing a battery tender on it? Something about being overcharged and discharged? :confused:

Quote:

Originally Posted by vtec to vvel (Post 4048805)

You need the correct battery tender for it. I have never needed mine. No issues in south Ga. heat which is probably hotter than Florida because we have no wind most of the time.

Quote:

Originally Posted by vtec to vvel (Post 4048805)

I use a CTEK smart charger which regulates charging, something like this:
https://smartercharger.com/products/ctek-lithium-us

phunk will get you what you need

Wow very nice!! I was eyeing the Z1 CF cross brace for 10lbs savings... but that's nothing compared to this... they're backordered now though

Quote:

Originally Posted by OptionZero (Post 4048770)

I can't recommend lithium enough. One of my fav mods:

http://www.the370z.com/track-autocro...xperience.html

Hit up CJM/Phunk