Battery Tesla or OEM BMW

I just replaced both batteries in my 2018 740iX. Was original battery (build date was Aug 2017) so actually lasted 8 years which was surprising given other problems I had with the car!

I still have the original BMW battery on my 2005 e46 325i , I used a battery tester on it and still say it’s good

Everyone likes to shit on BMW for being too complicated when it comes to having to register batteries with the car, but this is the result. Batteries in other cars die way more quickly.

I just changed my 2018 F36’s battery a few months ago. They really do last a long time.

2016 328i. Original battery still alive and kicking!

The battery on my previous F20 lasted over 12 years before I replaced it last winter. Had enough voltage but bad resistance readings, mechanic advised me to change it for the winter.

Owned a model Y for 2 years and 65k miles (9% battery degradation for those wondering). It got extremely boring and I was tired of the constant nagging from the car.

Warranty: side repeater, spoiler, battery (at 82k)

The battery in my 2020 MY quit on me last week at 115k miles.

I do worry about the battery and 3 years in my big battery died and thankfully I was in my garage. I shudder to think if it had happened on a freeway! Tesla gave me a new battery but I still think about it often.