Battery suggestion for 2020?

Spooler · 04-12-2020, 01:51 AM

Quote:

Originally Posted by Rusty

I had to replace the 4 house batteries on the motorhome because they froze and cracked the cases a couple of years ago. I don't know how old they were. Replaced all 4, 2 years ago or so. Had to replace 2 of them a couple months ago for cracked cases. I replaced the 2 engine batteries last summer. So I'm waiting on them to do something.

Yeah, I am missing my battery blankets now since the body shop replaced my batteries. Ugg, why can't folks just call and ask for help.

LennyK · 04-12-2020, 06:48 AM

I Was Planning On One Of These - Made By Deka -

SteveSAS · 04-13-2020, 07:01 AM

Was under impression that battery upgrade was to reduce weight?

Usually by half. Otherwise whats the point, just by same Panasonic one once it fails.

nandosman · 04-13-2020, 01:15 PM

Quote:

Originally Posted by SteveSAS

Was under impression that battery upgrade was to reduce weight?

Usually by half. Otherwise whats the point, just by same Panasonic one once it fails.

The point is buying a battery that lasts. I don't like changing my battery every 2 years.

SteveSAS · 04-13-2020, 06:08 PM

A Panasonic lead acid should last at least 5 years. Not sure if they still make car batteries. Just make sure you don't see the voltage on the dash sit at 15v for long periods of time.

I'm sure you can still find batteries made in the U.S that give you a 3 year warranty.

ZoomZ · 01-22-2024, 05:18 PM

Quote:

Originally Posted by Rusty

This is the one i would get.

https://shop.advanceautoparts.com/p/...000%7CL3*15597

Would you say these are same batteries:

https://shop.advanceautoparts.com/p/...000%7CL3*15597

https://www.costco.ca/energizer-35-a...100408225.html

Rusty · 01-22-2024, 08:21 PM

Quote:

Originally Posted by ZoomZ

Would you say these are same batteries:

https://shop.advanceautoparts.com/p/...000%7CL3*15597

https://www.costco.ca/energizer-35-a...100408225.html

They look the same. I ended up putting an Odyssey in mine.

ZoomZ · 01-23-2024, 01:44 PM

Quote:

Originally Posted by Rusty

They look the same. I ended up putting an Odyssey in mine.

The standard group 35 or a powersport smaller unit?

I believe the standard size is 50 lbs in the Odyssey.

ZoomZ · 01-23-2024, 03:24 PM

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)

Spooler · 01-23-2024, 07:05 PM

Quote:

Originally Posted by ZoomZ

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)

I have been on a Lithium battery since 2019. It weights 8lbs. Get ahold of Phunk at CJ Motorsports if you are interested.

LennyK · 01-25-2024, 06:11 AM

Quote:

Originally Posted by ZoomZ

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

ZoomZ · 01-25-2024, 12:08 PM

Quote:

Originally Posted by LennyK

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

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/

2011 Nismo#91 · 01-26-2024, 07:53 AM

Quote:

Originally Posted by LennyK

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

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 )

ZoomZ · 01-26-2024, 10:46 AM

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.

vtec to vvel · 01-27-2024, 01:38 PM

Quote:

Originally Posted by LennyK

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

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.

04-13-2020, 07:01 AM	#33 (permalink)
SteveSAS Base Member Join Date: Jun 2018 Location: Australia Posts: 61 Drives: 370z Rep Power: 5363	Was under impression that battery upgrade was to reduce weight? Usually by half. Otherwise whats the point, just by same Panasonic one once it fails. ZoomZ likes this.

01-23-2024, 03:24 PM	#39 (permalink)
ZoomZ Track Member Join Date: Jan 2017 Location: Vancouver, BC Posts: 710 Drives: 17' 370Z Nismo Rep Power: 40312	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) __________________ “Action without vision is a nightmare.”

01-26-2024, 10:46 AM	#44 (permalink)
ZoomZ Track Member Join Date: Jan 2017 Location: Vancouver, BC Posts: 710 Drives: 17' 370Z Nismo Rep Power: 40312	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. __________________ “Action without vision is a nightmare.”

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04-13-2020, 06:08 PM	#35 (permalink)
SteveSAS Base Member Join Date: Jun 2018 Location: Australia Posts: 61 Drives: 370z Rep Power: 5363	A Panasonic lead acid should last at least 5 years. Not sure if they still make car batteries. Just make sure you don't see the voltage on the dash sit at 15v for long periods of time. I'm sure you can still find batteries made in the U.S that give you a 3 year warranty.