Getting close to needing to replace a 72 month old battery. In checking the FLAPS used before and subsequently their competitors I'm finding none apparently sell a 72 month warranty battery anymore. But, they all are happy to sell one with half or less the warranty coverage for the same and often more money paid before.

Silly me, I thought battery technology was or has been improving.

So now the questions: What are you guys using lately? Cost? Warranty?

I am excluding Optima from my search because I want to stay close to original appearance.

Thanks in advance.