new battery

I bought an Optima, and it died after 4 years. The car it is in sits in a garage, and it is not hooked up- only to start it or drive it on a rare occasion.
I had to jump it for the first time 2 years ago, and now nothing.

This stupid no name battery the guy put in a car 2 years ago when I bought it has never given me any problems- and it weighs a ton.

Someone recommended Interstate in another thread.