Life expectancy of the 12-volt battery

[PaulM]

My Mach-E Premium is reaching 3 years of age. I am very happy with it. What is the expect life expectancy of the 12-volt battery? How does one check its status? Does the car provide a warning indicating it is time to replace the battery?

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[txaggies07]

Mine died suddenly right at about 3 years.

 

[bruceski88]

Car scanner will tell you 12v battery health, and a lot more. Search the forum. After 3 years and 4 months mine is still good.

 

[67 Stang Convertible]

Mine seemed fine at 2.5 years, but apparently it was to low so I could not receive OTA's. It was replaced under warranty. The car successfully updated the same day I received the battery.

So, you may be on borrowed time. Three years seems to be it's life expectancy.

 

[thenew3]

Like any automotive 12v battery, the life expectancy can vary greatly depending on the environment it is used in and how it's used. In very cold or very hot climates, 12v batteries tend to have shorter life of around 2-3 years. In milder environments, it's not unheard of for a 12v to last 10 years.

Some people will proactively replace their 12v at a fixed time interval. While others wait till it shows symptoms of failure before replacing it.

 

[Bruboy]

There are quite a few factors that go into this including how healthy was it when you got it, temperature, is your car inside or outside most of the time, how much are you driving it, how ofter do you charge it, etc. etc.

 

[mburtsvt]

Avoid the rush...get a new battery now.

 

[Ravensfan1996]

I wondered this as well. I hit 3 years this month. My 12v still holds a charge very well. I’ve only got 25k miles on it and its garage kept. Ill have to check my car scanner didn’t know it had SOH for the 12v

 

[charliec]

I wondered this as well. I hit 3 years this month. My 12v still holds a charge very well. I’ve only got 25k miles on it and its garage kept. Ill have to check my car scanner didn’t know it had SOH for the 12v

My 12 volt battery just turned 3.5 years and 25K miles. My son's 3 year old Tesla just had its 12v battery fail, which prodded me to arrange for a preemptive replacement of my Mach-E's 12 volt battery this week.

 

[Doug&Julie]

I've read that a 12v battery can last from 2-6 years depending on use and climate. We're in a temperate climate, but considering some of the horror stories I've heard from failed batteries, I'm planning to replace ours every 3 years.

 

[rreddy3]

I've read that a 12v battery can last from 2-6 years depending on use and climate. We're in a temperate climate, but considering some of the horror stories I've heard from failed batteries, I'm planning to replace ours every 3 years.

I’ve read that too on the battery. Replacing it at 3 years is buying some peace of mind.

I enjoy your channel too! Your mom and the MME was too cute. And the seal cave, who knew ….

 

[thirdage2009]

At about the 2.5 year point, my car stopped being able to process OTA updates. The battery percentage never went about 75%. I took the car in to get the OTA updates. The dealership tested the battery and gave me a new one under warranty. My suggestion is before your three years it up just take the car in for a final checkup and battery test. The dealership also replaced the windshield washer tank and tubing and the passenger door hinge which was squeaking.

 

[dtbaker61]

My Mach-E Premium is reaching 3 years of age. I am very happy with it. What is the expect life expectancy of the 12-volt battery? How does one check its status? Does the car provide a warning indicating it is time to replace the battery?

https://www.macheforum.com/site/thr...-update-to-recommend-replacing-at-36mo.33852/

 

[Doug&Julie]

I enjoy your channel too! Your mom and the MME was too cute. And the seal cave, who knew ….

Thanks so much! I haven't had a lot to shoot video about lately...but more are coming.

 

[JimmyMachE]

Car scanner will tell you 12v battery health, and a lot more. Search the forum. After 3 years and 4 months mine is still good.

Nope, it only shows the 12v battery % SOC (not SOH). There are some other values, but no 12V SOH.

'12v Quiescent avg' = dark 'parasitic' current when car is off

https://www.macheforum.com/site/threads/dead-car-in-winter.13784/page-5#post-339596

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