Sears DieHard designed to die after 3 or 4 days Raleigh Nationwide

I purchased a DieHard Gold battery for my Escalade in winter 2014.  When the summer 2015 rolled around, I started driving my convertible on nice days and letting my Escalade rest.  After the third time of having to call AAA to have the battery jump-started, I took it back to Sears and explained my problem.  The associate manager of Sears Auto Center in Crabtree Mall in Raleigh NC told me the following:  "It is NORMAL for a Sears DieHard battery to require a jump-start after sitting 3 or 4 days.  They are designed that way.  It even says that on the back of the receipt."  I have tried to contact Sears' main office and talk to anyone about this issue, but I get the "Not my department" response with each new call I make.  I am a mechanic and have never heard such unadulterated drivel as that, and I told the manager that.  He suggested I buy a trickle charger.

My previous battery was a Nationwide, and I never had problems with it, even after sitting for up to 2 months at a time.

Guess what my next battery will be... or better yet, what my next battery will NEVER be!