Picked up an Interstate H6 AGM battery for my Sportwagen back in February. My car came with an H5. Swapped it out for another H5 Die Hard from Advance today to drop some weight up front...my car is v. basic and has no reason for the AGM monster. H6 AGM = 44.6 pounds....H5 lead acid = 35.5. Almost 10 pounds saved! I'll just sell the Interestate off.