Not Ranked
I have had two 6V Optima Red Top which are connected in series in my Cobra for 7 years with no problems. I think I charged them once when I had an engine starting problem and cranked it so much it about killed the two batteries. They came back no problem after a charge.
As far as my other cars/boats. I use what is cheapest been pretty happy with Costco which I have two in my Diesel truck, one in my wife's Benz and one in my Toyota van. All good with those.
In regards to warranty, IMO, all you get with the more expensive batteries is longer prorated warranty which you pay for up front so what's the point. I would rather buy a $60 battery from Costco then a comparable battery from an Auto Parts store for $80-$100 bucks. The higher priced one sure doesn't last any longer and dealing with the prorated crap just drives me crazy.
Mike
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Rubber peelin' gears a jammin'!
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