Battery went out yesterday 3 months after purchase, settings.

[FLMustangMan]

Been really hot here in Southwest FL and when I got done shopping at Walmart yesterday my car wouldn't turn! What sucks is I bought this 2020 GT used back in April 52k miles at the time. Probably the battery was a few years old already. Luckily it happened at Walmart. Luckily the tech walked way out in the lot with me. He only had a very small hand held jumper and nearly got it to turn but it depleted it. Felt bad for him but we went in, got a battery and he went out in the heat and installed it for me? The battery didn't have a sticker on it so I couldn't see when it was last replaced. The dealer did put new brake pads on it but if the battery checks out I'm sure they're not going to replace the batter when someone trades it in.

Wal-mart only had the 2 year one in stock which sucks in this FL heat but all they had at the time. Cheaper than calling AAA or my insurance would probably been over 300 to install one there.

Anyway, I had to reset some of my stuff once my new battery was in. Will my transmission have to relearn everything? Also my alarm wouldn't sound after pressing the lock twice. Got that working now.

I slipped the guy a 20 for installing it out in the heat. When I was ringing out to go out there to install it a lady, her mom and infant came in too. Same thing. Their Kia wouldn't start after shopping and had to get a battery.

Is this pretty common the dealer doesn't put a new batter in when they service it at trade in?

Sponsored

 

[wingnutt]

Been really hot here in Southwest FL and when I got done shopping at Walmart yesterday my car wouldn't turn! What sucks is I bought this 2020 GT used back in April 52k miles at the time. Probably the battery was a few years old already. Luckily it happened at Walmart. Luckily the tech walked way out in the lot with me. He only had a very small hand held jumper and nearly got it to turn but it depleted it.

this underlined part, to me, is the biggest clue…something else is going on here?

my small noco handheld has started; a 2004 GMC diesel, a Caterpiller 320 trackhoe, a John Deere 4052 and a Cat 9032 bucket loader!

but I will gladly defer to the experts

 

[ORRadtech]

Your thread title is misleading. Your battery died 3 months after you bought the car, not after you bought a battery.
As to your question about installing a new battery in a used car at service/ before sale, if the car starts consistently, why would they?
Did you take the car for a pre-purchase inspection? Had you, it probably would have given you some warning or the opportunity to negotiate for a new battery.
Two things are very detrimental to an older battery. Extreme heat and extreme cold will suddenly push a battery over the edge with very little warning.
Living in Atlanta, which can get very hot and very cold, I'm happy if a car battery makes it to 4 years...

 

[wingnutt]

Two things are very detrimental to an older battery. Extreme heat and extreme cold will suddenly push a battery over the edge with very little warning.
Living in Atlanta, which can get very hot and very cold, I'm happy if a car battery makes it to 4 years...

…which leads me to my next point of order!

i grew up in northern Minnesota, the land of -40 below zero (-65 in deep winter) and we never had problems like this back then, I now live in the deep south of +100 in the summer.

buy the best battery you can, and put the best trickle charger on it that you can…the rest is all academic, don’t buy the quickest/cheapest thing that you can find

 

[HoldenSSVandGT350]

Your thread title is misleading. Your battery died 3 months after you bought the car, not after you bought a battery.
As to your question about installing a new battery in a used car at service/ before sale, if the car starts consistently, why would they?
Did you take the car for a pre-purchase inspection? Had you, it probably would have given you some warning or the opportunity to negotiate for a new battery.
Two things are very detrimental to an older battery. Extreme heat and extreme cold will suddenly push a battery over the edge with very little warning.
Living in Atlanta, which can get very hot and very cold, I'm happy if a car battery makes it to 4 years...

Spot on. Except for the very cold in ATL part

 

[FLMustangMan]

…which leads me to my next point of order!

i grew up in northern Minnesota, the land of -40 below zero (-65 in deep winter) and we never had problems like this back then, I now live in the deep south of +100 in the summer.

buy the best battery you can, and put the best trickle charger on it that you can…the rest is all academic, don’t buy the quickest/cheapest thing that you can find

I'm from Stl originally, this is my second time living in Southwest FL. Batteries, and tires seem to wear out fast down here as well as windshield wipers. I've never gotten more than 3 years on a battery down here. This week has been upper 90s. The last week except for Sat has been above normal and very humid and hot. The walmart tech told me they've been having a lot of bad batteries this last week.

 

[wingnutt]

Spot on. Except for the very cold in ATL part

lol, fun story!

I showed up to BASIC training for the USArmy in January 1992, and when I left the MEPS facility it was -30F, we went to Missouri it was +40, I was in heaven and shorts!

the boys from Atlanta were in full cold weather gear…fur lined parks and thermal pants, I earned a certain nickname that I shall not recite here in polite company

 

[ORRadtech]

Spot on. Except for the very cold in ATL part

lol, fun story!

I showed up to BASIC training for the USArmy in January 1992, and when I left the MEPS facility it was -30F, we went to Missouri it was +40, I was in heaven and shorts!

the boys from Atlanta were in full cold weather gear…fur lined parks and thermal pants, I earned a certain nickname that I shall not recite here in polite company

I've lived in the Atlanta area 38 years now. It has gotten into the negative teens a few times. But no where near as cold as the winter I spent in Minneapolis.

 

[Skye]

Will my transmission have to relearn everything?

It shouldn't. The tables are stored in the Powertrain Control Module (GT500s have a dedicated Transmission Control Module). The PCM's and TCM's memory is non-volatile.

The primary way I found to clear the tables was to zero them out using FORScan or other programming tool.

Is this pretty common the dealer doesn't put a new batter in when they service it at trade in?

Common they do not replace it? Yes. From the seller's perspective, that'd be a waste of money. In this example, the battery did it's job: it lasted long enough for the sale to complete.

New used car + FL in the Summer + A/C = Dead battery. Not unusual. As others mentioned, I would get the charging system checked. If you drive in multiple, brief trips, you might want to look into buying and installing a battery tender.

When the battery is replaced, reset the Battery Management System. BMS is akin to the Oil Life Monitor, for the battery and charging system. The dealer should definitely be aware to reset it. The tech at Walmart? Probably not. They see so many different manufacturers and model years. But resetting is easy. You can do it in moments.

https://www.mustang6g.com/forums/threads/bms-reset-no-tools-required.151602/

Modern cars have a lot of parasitic drains. You can lessen those by locking the car when not in use, storing the fob in a faraday pouch when not needed, turning down or disabling connections or services not in use, etc.

 

[Hack]

Cars get better fuel economy when the alternator doesn't work very hard. Older cars would charge at a much higher rate than newer cars do.

 

[Craig Brown]

I get 5 to 6 years from my Motor craft batteries here in Minnesota and we get both hot and cold weather; this week it has been 100 degrees 3 times. I just replaced the battery in my plow truck this spring, and it was 7 years old. I took the two-year-old battery out of my pickup truck and put it in the expedition plow truck, and the new battery went in the PU. I use cut out switches on vehicles that don't get used often. It just connects to the - battery terminal and cuts the power. I also have a 07 MKZ that hit a deer and it sat all winter this spring the battery was totally dead I put it on my charger for two days, and installed back in the car with a cutoff switch every week I have to move it to mow and it starts up every time that battery is a four-year-old Motor craft that sat dead for months before the complete charge. Motor craft is all I buy.

 

[BullittTheBlueSky]

Is this pretty common the dealer doesn't put a new batter in when they service it at trade in?

Why would they? The battery was 6-7 years old, it had a good long run.

 

[wingnutt]

Why would they? The battery was 6-7 years old, it had a good long run.

big dealers do it all the time, has something to do with showing a loss and then charging on the back end for parts

Sponsored