not for nothin, those AC Delco batteries are a) leaky b) don't last long.
I bought a metric buttload of all, AA, AAA and even a package of C (why do ALL toys EVERYWHERE only take Cs?) and their lifespan is remarkably short. As well, I've had 4 separate leakage situations, 2 in a flashlight, one each in different TV remotes.
(incidentally, the eneloop rechargable batteries I bought are A++++++)