Battery OPTIMA or OEM BMW

I always buy an Optima battery for all my cars cuz they last a lifetime.

When I replace mine I went with the Optima Yellow Top. Seems to be hanging in there 6 years later.

I've never had a problem with one

I had a couple of Optimas back in the early 00’s that I took from truck to truck to truck. I had a couple of them for about 10 years. they used to be nearly indestructible.

My 09 yellow top just bit the dust. I was able to get it charged back above 13v but it's so old I didn't want to risk it with winter coming.

Got my yellow top in my 2000 subaru forester still going good 4 years up north where it gets cold

The battery is an Optima Yellowtop 5.5 75h, I changed it in 2018. It has central poles and the negative pole near the windshield. Now given the very high prices of the Optimas and since their lifespan disappointed me, I wanted to get a cheaper battery.

I also have an 18 and replaced factory with an Optima Yellowtop. Did not last long at all which sucks, was excited to try a battery I've heard so much good about. Went back to OEM since I didn't want any headache and it lasted me quite a bit the first time. Seems like Optima has declined in quality over time.

Replaced my OEM battery with a yellow top and it lasted less than a year. Complete junk imo.

When I worked at the auto parts store, we warrantied a lot of Optima’s. I’d be careful before dropping money for one.