Where to buy a cheap BMW X3 battery replacement with the best warranty & more power

According to Google search, the average BMW battery lasts between 3-5 years.

My first BMW battery that came with the car lasted more than 11 years. So it's no brainer I went to buy a replacement battery from a local BMW dealer for over $200 hoping it will at least last for another 5 years if not more.

But no luck this time it died shortly after 2 years. Because the warranty for an original BMW battery isn't that great. With these two best and worst experiences, I had to decide where to buy a third replacement battery with a better warranty coverage.

Here I'm going to share with you what I ended up buying my third BMW battery which I believe that came with the best warranty on the market and more power.