Talked the dealer into matching Costco. They installed. Use a battery minder (Costco) when it is not being used for weeks at a time.

I use the paint stick with “Charging” marked on it (both sides) to leave on the seat so I will not drive off with it connected. I lower the unit from the engine bay to the ground, fish it out and plug it in. I can then shut the hood, put the cover on and forget it.

 

Optima Yellow top S2000 spec, CTEK MUS 4.3 charger: https://smartercharger.com/collectio...est-and-charge and Chasing J's titanium battery tie down bar/rods/nuts. Send me a PM for the best prices on CTEK products.