I’ve got a 9 year old optima in my truck. It’s a Blue 27 marine battery. It was in the boat for 5 years and couldn’t run all the electronics all day in the boat. I put it in the truck and it’s been good for 4 years now. Doesn’t fit for [censored]. I have it mounted on its side and backwards to get the cables to connect.

Don’t overthink it. Most batteries will give you some signs when it’s starting to go. I say most, because the factory Toyota battery was 100% one morning, then 5 miles down the road, it was totally dead. Like it didn’t even exist. I could have shorter the terminals and it wouldn’t have made the faintest spark. Just dead and gone.

That is the way the Tundra batterry went. I came home from work backed up to hook up the boat and totally dead. No slow starts or any warning. At least when I had my Tacoma I got a slow crank one day and knew it was time. Hopefully the Auto Zone batterry gives some warning and not while I am at the deer lease.

Mine was a tundra battery too. Our battery guy that comes by the shop said the lead in these factory batteries is of a kind that catastrophic failure is more likely than dying of age. He was right. Mine had a major internal failure. Plates broke or something.

I bet you’ll be fine with that regular ol battery for a while yet. No need to spend good money.

I usually replace every 2-3 years regardless.

I had the battery quit on my 2018 Silverado yesterday. Missed a Dr. appointment because of it. It was fine when I parked it the night before. I charged the old battery enough to get to Walmart where they put in a $190 battery. I was surprised at the price.

I had the battery quit on my 2018 Silverado yesterday. Missed a Dr. appointment because of it. It was fine when I parked it the night before. I charged the old battery enough to get to Walmart where they put in a $190 battery. I was surprised at the price.