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Shall Not Be Infringed
Picture of nhracecraft
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quote:
Originally posted by trapper189:
quote:
The charging profile for an AGM Battery is supposed to change over time in order to maximize the life of the battery.

Same is true with regular wet cell and SLA batteries; the curve is different for AGM.

Three phases for smart chargers: bulk, absorption, and float. During the bulk phase, the charger throws as many amps as it’s capable of at the battery. IE, a 15 amp charger throws 15 amps at the battery. As this happens, the battery’s voltage rises until a preset limit. The limit is different for different batteries. Don’t quote me, but I believe 13.8v for gel, 14.4v for wet cell lead acid, and 14.7 for AGM. The batteries reach this preset limit at about 80% of fully charged. At this point, the absorption phase, the charger holds the voltage constant by reducing the amps it throws a the battery. Once the battery is fully charged, the charger goes into the float phase where it just keeps the battery charged and reduces the charging voltage, about 13.2v for a wet cell lead acid battery.

Cheap chargers let the voltage keep rising which cooks the acid and water releasing hydrogen and destroying the battery. There’s more, like temperature compensation, but I see eyes glassing over already.

We're getting off in the weeds here, but my main point was that programming the computer for the new battery affects how the vehicles charging system performs when charging the battery and resets the battery charging profile for a 'new' battery, not just the battery type. You had mentioned German cars, referencing VW and my info originates from Audi, which actually changes the battery charging profile based on the time in service for AGM Batteries.


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Posts: 10872 | Location: New Hampshire | Registered: October 29, 2011Reply With QuoteReport This Post
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Johnson Controls makes Walmart batteries and interstate (and a few other brands). Walmart batteries, a lot of the maxx ones have the same specs as the equivalent Interstate but generally have a longer warranty.
 
Posts: 21742 | Registered: June 12, 2005Reply With QuoteReport This Post
Like a party
in your pants
Picture of armored
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Is Costco a possibility for a new battery?
Last time a bought batteries it was from Costco.
They sold Interstate at that time.
 
Posts: 5257 | Location: Chicago, IL, USA: | Registered: November 17, 2002Reply With QuoteReport This Post
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Another vote for Walmart Everstart Maxx here.
 
Posts: 296 | Location: Long Island, NY | Registered: December 19, 2021Reply With QuoteReport This Post
Savor the limelight
posted Hide Post
quote:
Originally posted by jimmy123x:
Johnson Controls makes Walmart batteries and interstate (and a few other brands). Walmart batteries, a lot of the maxx ones have the same specs as the equivalent Interstate but generally have a longer warranty.

Johnson Controls sold its battery business to a private equity firm, Brookfield Business Partners, six years ago which then named their newly acquired business Clarios. Clarios owns Optima and Varta. The made in Germany labeled WalMart batteries were made by Varta. East Penn also makes batteries for WalMart.
 
Posts: 14382 | Location: SWFL | Registered: October 10, 2007Reply With QuoteReport This Post
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Picture of sgalczyn
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The East Penn-DEKA AGM battery (Intimidator) has lasted 7+ years in my cars...................


"No matter where you go - there you are"
 
Posts: 4920 | Location: Eastern PA-Berks/Lehigh Valley | Registered: January 03, 2001Reply With QuoteReport This Post
St. Vitus
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Picture of blueye
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Another Walmart fan here, easy peasy on the warranty if needed.
 
Posts: 5459 | Location: basement | Registered: April 06, 2007Reply With QuoteReport This Post
Three Generations
of Service
Picture of PHPaul
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New Everstart Maxx being topped off as I type.

Only 500CCA available in the correct form-factor. I misread the label as a Type 24, but it's actually a type 51R.

Still, that's better than the 430CCA it came with and it lasted 11 years.




Be careful when following the masses. Sometimes the M is silent.
 
Posts: 16497 | Location: Downeast Maine | Registered: March 10, 2010Reply With QuoteReport This Post
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Picture of iron chef
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quote:
Originally posted by armored:
Is Costco a possibility for a new battery?
Last time a bought batteries it was from Costco.
They sold Interstate at that time.
Costco went to a pro-rated warranty, so if your battery dies in month 36 of its 36-month warranty, you will receive a credit for 1/36th of its purchase price.

Walmart EverStart warranties are full replacement. A dead battery in its last month of warranty time-frame will be replaced 100% w/ the equivalent model.
 
Posts: 3789 | Location: Texas | Registered: June 17, 2003Reply With QuoteReport This Post
Cynic
Picture of charlie12
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quote:
Originally posted by RogueJSK:
Walmart's Everstart batteries are some of the best bang for the buck in the battery world.

I typically get the Everstart Maxx.

There are only like 2-3 traditional lead-acid automotive battery manufacturers that supply nearly all the batteries in the US, with the ones at the automotive supply or big box stores generally being made by either Johnson Controls/Clarios or East Penn.

So if the specs are comparable and they came from the same factory, the price difference between different batteries from different places is just down to the brand/marketing/store markup. There can often be a $50+ difference between identical batteries that rolled off the same production line, just due to being sold at different stores with a different sticker on them. Go with whatever's cheapest with the specs you want.


I get mine from Walmart too. I just got one for my truck a couple weeks ago. Everstart Maxx


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Posts: 13134 | Location: Pride, Louisiana | Registered: August 14, 2002Reply With QuoteReport This Post
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Picture of mikeyspizza
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What about the Duracell's from Sam's? I've bought 3 of them but in the past 3 years but don't have a track record to report yet other than they're still going.
 
Posts: 4200 | Location: North Carolina | Registered: August 16, 2003Reply With QuoteReport This Post
Savor the limelight
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The Sam’s Club Duracell AGM batteries have a 3 year replacement warranty while the WalMart AGM batteries have a 4 year replacement warranty. We spend several months 200+ miles from the nearest Sam’s Club but 20 miles from the nearest WalMart, so WalMart wins for me. The Sam’s Club batteries lasted just outside the warranty down here.
 
Posts: 14382 | Location: SWFL | Registered: October 10, 2007Reply With QuoteReport This Post
Thank you
Very little
Picture of HRK
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Ya know, WalMart has good batteries Big Grin
 
Posts: 27666 | Location: Gunshine State | Registered: November 07, 2008Reply With QuoteReport This Post
Giftedly Outspoken
Picture of sigarms229
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I own 3 vehicles. 2 of them currently have Walmart Everstart Maxx batteries in them. The only reason the 3rd doesn't is because I couldn't find a walmart with the size I needed in stock so that one got a Motorcraft Battery.



Sometimes, you gotta roll the hard six
 
Posts: 4715 | Location: SouthCentral PA | Registered: December 05, 1999Reply With QuoteReport This Post
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After doing my research I went with the Walmart battery. Like others said most batteries are relabeled. The main reason I went with Walmart is the warranty and locations. If the battery fails at 8pm on Sunday night I can drive 15 mins to Walmart and have new battery.


 
Posts: 5670 | Location: Pittsburgh, PA, USA | Registered: February 27, 2001Reply With QuoteReport This Post
Three Generations
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Picture of PHPaul
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quote:
Originally posted by HRK:
Ya know, WalMart has good batteries Big Grin


Ya don't say!

I'll have to check that out.

Razz




Be careful when following the masses. Sometimes the M is silent.
 
Posts: 16497 | Location: Downeast Maine | Registered: March 10, 2010Reply With QuoteReport This Post
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Picture of cparktd
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I tried a few Walmart batteries over the last several years on my and family / friends vehicles.

NONE, not a single one, has lasted out the stated warrantee.

BUT... they sell multiple levels of them, good, better, best. Our local store virtually never has the top tier in stock in the size needed.

On the other hand, in ~55 years of buying Interstate top tier I have never had one fail before the warrantee is out.

I will say the Walmart warranty has always been honored.... if the battery is technically out by its MFG date, you will need your receipt.

YMMV!



Some people spread happiness wherever they go… some whenever they go.
 
Posts: 4462 | Location: Middle Tennessee | Registered: February 07, 2013Reply With QuoteReport This Post
Drill Here, Drill Now
Picture of tatortodd
posted Hide Post
quote:
Originally posted by cparktd:
I tried a few Walmart batteries over the last several years on my and family / friends vehicles.

NONE, not a single one, has lasted out the stated warrantee.

BUT... they sell multiple levels of them, good, better, best. Our local store virtually never has the top tier in stock in the size needed.

On the other hand, in ~55 years of buying Interstate top tier I have never had one fail before the warrantee is out.
Batteries that are 100% replacement (i.e. zero proration) warrantied 3 years and only last 30 to 35 months are my favorite kind!

My Frontier eats batteries between living in hot, humid Houston and Nissan's design. I've owned it 9.5 years and only bought 1 battery. Nissan did serial warranty replacements until 1 finally lasted past warranty. I bought an Interstate battery, and it didn't last until warranty so I got a new one for free. Interstate is smarter than Nissan and only replaces once.

Manufacturers make a northern version (i.e. excels in the cold) and a southern version (i.e. excels in the heat). The further north or south you live the more likely you are to kill the battery before the warranty. I drove my old Silverado from Houston to Alaska in Oct 2009, and by Jan 2010 my "southern" Interstate was deader than a hammer. In Alaska, my Silverado w/ "northern" Interstate batteries never made the warranty date.



Ego is the anesthesia that deadens the pain of stupidity

DISCLAIMER: These are the author's own personal views and do not represent the views of the author's employer.
 
Posts: 25527 | Location: Northern Suburbs of Houston | Registered: November 14, 2005Reply With QuoteReport This Post
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