What gives? Bad battery leads to new discovery

[Stircrazy]

@Stircrazy my experience with batteries in the phoenix area over the past decades is to treat the 12V battery as a maintenance item - to avoid chance of being stranded, I replace the battery every 2 years no matter what

A couple of hot summers is my experience here as have many people I know so any 12V AGM battery is fine because it’s getting replaced in 2 years. I know your experience is different than mine.

The AGM Battery I have now will be 2 years old mid summer and I suspect the reason it’s failing at 18 months is due to sulfation which is a topic covered pretty well here:

https://www.macheforum.com/site/threads/how-to-recondition-service-your-12v-battery.11069/

wow, your throwing a lot of money down the drain, the AGM batteries for the bronco from costco have a 5 year full replacment warenty and a 4 year prorated after that. Up here that agm from costco is 370.00 Cdn after taxes, I couldn't imagin having to change it every two years.

where I live we get just as hot as Phenox in the summer,temps above 40C are normal, we get the odd shoot up to 45C but we also get down to -30C in the winter so we have the extream summer heat, then also the battery killing power of the cold winter. I just replaced the AGM batteries in my kids 2018 escort, and the wifes 2019 edge this winter.

the thing with our vehicles is they don't just die, first the auto start/stop stops working. when that happens is your cue to change the battery if there is no code that explains it.

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[Dude]

I’ve had 2 Motorcraft batteries in the ‘22 Badlands - one from the factory failed and replaced under warranty at 2.5 years and the Motorcraft AGM battery which is long since out of warranty and began failing at 18 months - it’ll be replaced before summer

No matter the quality / price of the battery, the life is typically under 3 years with the extreme temps often lasting 7 months - nighttime temps sometimes don’t go below 100°F now

Don’t want to get stranded so battery gets replaced on a schedule

 

[jkernitzki]

I’ve had 2 Motorcraft batteries in the ‘22 Badlands - one from the factory failed and replaced under warranty at 2.5 years and the Motorcraft AGM battery which is long since out of warranty and began failing at 18 months - it’ll be replaced before summer

No matter the quality / price of the battery, the life is typically under 3 years with the extreme temps often lasting 7 months - nighttime temps sometimes don’t go below 100°F now

Don’t want to get stranded so battery gets replaced on a schedule

Also remembering that for those of us that garage our vehicles, it’s even more pronounced as the garage stays hotter than outside overnight. My garage can easily be 105 or more just before sunrise in July/August.

So yeah, batteries (and tires & windshields) get replaced fairly often in the Valley.

 

[Ozzy]

2023 OuterBanks 1.5L. Has 38K miles. Just got home from a 520 mile roadtrip. 2 days later, deader than a doornail. Jumped it and started right up. Hooked up my scan tool and was at 11.59 volts. Decided to pull the battery for replacement and was surprised to see a Enhanced Flooded Battery. I was under the impression it would be an AGM due to the auto stop start. Decided I would replace it with an AGM and use Forscan to change the battery type and reset the BMS. Low and behold, the battery type was already set to AGM. I am the second owner, so who knows what was done the previous 34K. Thoughts.

One thing yes ford replaced battery with agm. But they also need a update for computer to read battery voltage properly

 

[Arcee]

wow, your throwing a lot of money down the drain, the AGM batteries for the bronco from costco have a 5 year full replacment warenty and a 4 year prorated after that. Up here that agm from costco is 370.00 Cdn after taxes, I couldn't imagin having to change it every two years.

where I live we get just as hot as Phenox in the summer,temps above 40C are normal, we get the odd shoot up to 45C but we also get down to -30C in the winter so we have the extream summer heat, then also the battery killing power of the cold winter. I just replaced the AGM batteries in my kids 2018 escort, and the wifes 2019 edge this winter.

the thing with our vehicles is they don't just die, first the auto start/stop stops working. when that happens is your cue to change the battery if there is no code that explains it.

For what it is worth, Costco's AGM Batteries in the United States carry a 3yr prorated warranty. No full replacement.

 

[cprcubed]

For what it is worth, Costco's AGM Batteries in the United States carry a 3yr prorated warranty. No full replacement.

Their other batteries have the same warranty as well. Cheers!

 

[Stircrazy]

For what it is worth, Costco's AGM Batteries in the United States carry a 3yr prorated warranty. No full replacement.

realy, man that sucks, the enegizer H6-AGM for our bronco from costco is 5 years limited, 100 months pro-rated.

 

[Summers22]

Walmart Everstart AGM is 4 years unlimited

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