I am waiting for my current optimas to eventually die. The old Optimas were an excellent product, but somehow the new prod ones in the lat years have been sub par. I have run red tops, yellow tops, in multiple cars, boats, sand rails, and other projects. Funny enough the couple I have from almost a decade ago survived well, and the newer ones died within a few years.
I took the last one (was pretty much new with little use - it still looked brand new), to the Optima truck at Good Guys hoping they would be able to resuscitate it but no luck
Best recommendation here is to trickle charge and run the batteries frequently, no matter whichever one you buy.
Kreigh