Battery Longevity

[Donald]

Probably time.

Hi folks,

Time for a battery replacement and would like to know how long does a car battery usually last? I'm sure there's factors like climate, Short trips and other issues that can shorten a batteries life.

My Acura MDX has been sitting and I haven't started the SUV in a few months and notice there's no crank, Start or power. the battery that was installed was a genuine Acura battery and the date of the battery was September 2019 so that's a seven year old battery, Looks like I need to replace the battery.

What you guys think?

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Probably time. But I would still fully charge with plug-in charger and then test it.

You could have left a light on or have a parasitic current draw.

 

[Donald]

I’ve got jump packs in all 3 of my cars, so I’m going to see how long I can ride these out with the charging theory applied. I do test them once a month, so barring a straight up failure, I should have a good idea when it’s time.

Test them how?

 

[50yr Street Mech]

I replace every 4-5 years, often in the fall. Winter starts below zero will reveal any weakness in your battery and it's the worst time to have a no-start situation. If I lived in a hotter climate I bet battery life would be shortened by the constant heat. I've experienced many battery failures around the 4-5 year mark. Better to replace early than to be stranded somewhere. Think of it as a regular maintenance item.

I'm also in NY. Never had much luck with batteries nearing the 5yr mark, even with maintainers & topping off. I'm blaming it on the insane temp swings here. You can have 0 degrees weeks with wind chills in the negatives, then go to 100 degree days for weeks. Too much stress on a battery IMO.