Battery OEM Mazda or OEM Subaru
Still going strong on OEM battery after 3yrs
I’m in the UAE, where summers hit around 50°C. This Forester is my first car with auto start-stop, and I’m impressed that the battery lasted a solid 4 years. With my driving habits (lots of short runs), my previous cars’ batteries would barely survive 1–1.5 years. This one lasted more than double that.
Still on vanilla battery. As part of my wife's start process is start car, press button to turn off auto off. Seems to be working.
My battery conked out at the normal time after 6 years. But it still didn’t give me any warning that it was dying. 2019 Mazda 3 here
I had this issue as well, one day the car wouldn’t turn over. Then it would. Then there was no power. Then it would start. Over several days and weeks this would happen. It was explained to me that the Subaru batteries that come from the factory are made to hold just barely enough power to start the car. If that power is diminished in even the slightest degree, like with normal usage in the first 50k miles, then the battery does not have enough charge to do its basic task anymore, rendering it useless. As I understood it, the batteries in the new cars are not up to snuff.
Replacing my battery recently
A new battery at 10k miles.
Battery died around 50k miles.
The only time I had issues with my battery was the original one when it was on its death bed. But I remember needing to clean the posts a few times and it would start right up. Never was left with a check engine light but when it acted up it would do weird things here and there.
I’ve had my 3 for 4 years and I’m on my 3rd battery.
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