Battery Voltage over 15

[Lanliz25]

Hi.

I saw a post from last year about battery voltage over 15.

SA says up to 15.8 is normal. It was 15.3 and fluctuating a few weeks ago. They've since replaced the alternator under my warranty.

It's still at 15. Should I get a new battery or keep an eye on it.

I do not use the auto stop start feature. I drive in Sport mode 100% of the time.

It's a 22 Big Bend 2.3 manual.

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[Brian_B]

I see mine flicker over 15 on occasion (especially right after startup or going downhill) - but most of the time it rides somewhere in the high 13s / low 14s

If it’s staying up over 15 all the time there may be an issue somewhere

 

[Lanliz25]

I see mine flicker over 15 on occasion (especially right after startup or going downhill) - but most of the time it rides somewhere in the high 13s / low 14s

If it’s staying up over 15 all the time there may be an issue somewhere

Thank you. I went to Autozone and had them check the battery. Mostly because I don't trust the dealer. The battery is good. He said it was only 70% charged so I'm hoping it goes down. I just picked it up today with that new alternator. I love my Bronco. I hope it's not a dud.

 

[Bronco Don]

I just had my battery replaced under warranty today and my voltage while driving was about 14.7 but once in a while it would glitch up to 15 and then go back down to 14.7 but my resting voltage was around 12.2 so I had a bad sell in my battery. It seems all the 2021 broncos have issues, The batteries are cheap.

 

[da_jokker]

After sitting for a week or having a good draw on power why driving (fridge running or something) mine gets to 15.2 often. But once I've driven it a while, I've had it go down to under 13 even...but it can take a while.

Basically, go on a 2+ hour drive and see. But Sounds like either you don't drive it long enough, or you battery is not getting charged properly.

 

[SWLABRONCO]

I bought my wife's Bronco in February, and I noticed that the battery voltage seemed high then (around 15v). Checked a few things with my meter but found no real issues. I have been monitoring it ever since. I have noticed that during cold or cooler temperatures that the voltage runs higher, 14.7v yesterday. During the summer it ran between 12.2 to 13.9v. I may be completely wrong but I think the voltage varies with the temperature. Batteries don't like cold weather. My 2 cents!!

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