Battery OPTIMA or OEM FORD

Bought the Optima, not yet installed. Have had good luck with them, 5 yrs or more each,

My last experience from them was a yellow top from 2015 that I got for my '01 Mustang. Had it for 4+ years starting up just fine and survived despite having been drained dead 5 times or so. Sold the car before the battery died.

I had one. It lasted a good seven years. Still good quality, its worth it if you can swing the price.

My red top from 08/09 finally let go last week it has already been replaced by another red top. Highly recommended.

I remember this very interesting post a couple years back regarding AGM batteries and their charging requirements: On the one vehicle that I modified the charging circuit to run at 14.7V I have an Optima Redtop battery in it that has never been replaced. And this includes repeated discharges to near 0% SOC when the sales people at the tradeshows forget to turn the vehicle off after the show.

I always hear people talk about issues with newer Optimas but my old REDTOP is going on 13 years old and still going strong.

While I did that I went ahead and grabbed a Red Top Optima Battery. Got everything back together, it turns over great but it doesn't spark.

my optima red top died after 3.5 years and 4800 miles. When it wasn’t driven, I had the battery disconnected. For a $240 battery, I’m extremely disappointed. FWIW, the battery was in a restomod 66 mustang. I bought it in March 2018, and the warranty expired in March 2021.

Both of mine were defective. Ford replaced them.

Optima used to be a big name but they switched manufacturing to Mexico and ever since they just don't hold up.