Have an optima battery now. Bad alternators toasted my oe battery so finally I put an underdrive pulley on a brand new alternator and put in a brand new optima. knock on wood, that combo seems to have fixed my alt troubles.
My battery took a dump last month at 9,000 miles so I put in a ford GT battery I had to fab up a L clamp to clamp it down but it looks good and its a optima battery and weighs probably 15lbs lighter than the stock one.
Just under 38K, and am still on the stock battery. I think its starting to get a little weak though. Its a pretty early build model.
WTF is a Tender?