Pre-emptive battery change?

[757DRVR]

I have a 2019 Bullitt with 30K miles. Battery seems fine, but being 5 years old wondering if I should purchase a new one. Thoughts?

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[TonyT930]

I have a 2019 Bullitt with 30K miles. Battery seems fine, but being 5 years old wondering if I should purchase a new one. Thoughts?

You can!! It's not a bad idea. However, I usually wait until I hear it start to crank a little slow for the first time, then I replace prompty.

 

[WItoTX]

Test it and watch the volt gauge. If it is staying at 14.4 or so volts, you know it's starting to get weak. But if it's mostly at 12.7 ish, I would say it's fine.

 

[IPOGT]

I carry a lithium jump starter in the trunk and run my batteries almost until they croak.

 

[StealthFighter]

after five years use, just change it out, when a battery this old goes it will happen fast with basically no warning, do it now at your leisure not when it happens away from home, ask me how I came to this conclusion lol.

 

[SL8888]

19 GT 350, purchased off showroom floor with 4.6 miles on it. Now has 21,500 miles, always has been kept in garage with battery tender for winter.
Getting new battery in spring because it will be time, I’m doing my best not to get stranded with a bad battery

 

[ZeroTX]

I'd start looking into it if it's a daily driver or if it's a weekend car and you're gonna go on a trip. Mine sits up in the garage a lot and probably won't have a long battery life...

Does anyone know if these cars came with AGM batteries (and if not, why not?!).

Thanks

 

[cerbomark]

funny, I was just thinking the same thing on my 2020 with 20K. Probably hold off a little longer. Cranks fast, volt gauge always shows probably 14 ish, hard to tell. Subscribed.

 

[Pittpa]

I don't know if this will help, but it does give state of charge and state of health.

 

[Farkel]

I'd start looking into it if it's a daily driver or if it's a weekend car and you're gonna go on a trip. Mine sits up in the garage a lot and probably won't have a long battery life...

Does anyone know if these cars came with AGM batteries (and if not, why not?!).

Thanks

Through at least 2020 they came with old-fashioned flooded batteries. I would guess that's because Ford saved a few cents per car. I swapped mine for an AGM early on.
If you're not sure what's in yours, pop the cover off (don't drop the stupid cover pins*) and see if it has removeable pieces to check/fill the cells. The flooded batteries do and the AGMs don't.
If yours sits in the garage a lot, keep it locked with the fob out of range and use a battery maintainer for maximum battery life.
*I put the pins in a baggie for safekeeping and the cover stays put just fine without them.

 

[Johnny Rockit]

The battery in my car was dead in the showroom and was pushed out to jump it for a test drive. It was replaced that day for pick up the next. Fast forward almost two years, battery is junk. Turns out the wrong battery was put in and the local dealer tested things and said the battery was fine. After a couple of days sitting in the shop it was dead. The dealer who sold me the car is sending me a check since the local dealer would not honor the warranty due to the wrong battery being installed.
And on the paperwork, the tech said it was probably because of the aftermarket dashcam he noticed.
A big F.U. to my local dealer as the Fitcam X only runs when the car is powered. Kudos to Heritage Valley Ford for the no bullshit attitude and prompt service.

 

[Skye]

Batteries have a given number of charge and discharge cycles before they begin to degrade in performance and eventually fail. Drawing current from the battery under highest Summer and lowest Winter temperatures can further accelerate its wear.

While I maintain all my vehicles as best I can, I change the batteries every 5 years.

If you do change yours, perform a BMS reset afterwards. If you're not familiar with the process, it's like resetting the Oil Life Monitor. As any of us have driven our cars, their charging systems have been adjusting, aware the battery has degraded a little here, a little there. A BMS reset lets the car's charging system know a new battery in installed, so it can change its routine accordingly.

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

If the car is driven infrequently, consider installing a battery tender. Several threads on this topic.

https://www.google.com/search?q=mus...HRQ7GNwQrQIoBHoECBkQBQ&biw=1466&bih=743&dpr=2

Edit,

The post below is a good reminder to check the battery and cables every so often. I check under the hood of all my vehicles once a month. The battery cover on the Mustang is necessary, but something of a hindrance.

While I do not remove and check monthly, roughly once a quarter, I will pull the cover and check underneath. Clean thus far. I think the battery tender helps with that. For vehicles which are not driven often, instead of a large charge event once in a while, the battery is exercised a little bit, regularly. That's just a thought. I have no proof.

 

[wa9njm]

I've had terrible luck with the original Motorcraft battery. Have owned a used '16 GT, 19 GT, and now a '19 Bullitt all with the original battery. And every single one leaked acid like crazy around the negative battery post. This was my '19 Bullitt when I got it a few months ago with 36k on it. (But at least I got a decent chunk of change off the price because of the battery)

TLDR, I'd get rid of it immediately and replace with another brand, especially at 5 yrs old.

 

[Johnny Rockit]

Batteries have a given number of charge and discharge cycles before they begin to degrade in performance and eventually fail. Drawing current from the battery under highest Summer and lowest Winter temperatures can further accelerate its wear.

While I maintain all my vehicles as best I can, I change the batteries every 5 years.

If you do change yours, perform a BMS reset afterwards. If you're not familiar with the process, it's like resetting the Oil Life Monitor. As any of us have driven our cars, their charging systems have been adjusting, aware the battery has degraded a little here, a little there. A BMS reset lets the car's charging system know a new battery in installed, so it can change its routine accordingly.

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

If the car is driven infrequently, consider installing a battery tender. Several threads on this topic.

https://www.google.com/search?q=mus...HRQ7GNwQrQIoBHoECBkQBQ&biw=1466&bih=743&dpr=2

Edit,

The post below is a good reminder to check the battery and cables every so often. I check under the hood of all my vehicles once a month. The battery cover on the Mustang is necessary, but something of a hindrance.

While I do not remove and check monthly, roughly once a quarter, I will pull the cover and check underneath. Clean thus far. I think the battery tender helps with that. For vehicles which are not driven often, instead of a large charge event once in a while, the battery is exercised a little bit, regularly. That's just a thought. I have no proof.

Does the dealer tech reset the BMS as part of the job? I will have to check the paperwork. Thank you for that link, I had read it in the past but now it pertains to my situation.

 

[3pdl]

my '19 manual recently cranked slow so i went and got a new battery. stopped at a grocery store on the way home and the battery died. it bump started and got me home for the swap.

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