Purchased 12V marine battery from SAM'S CLUB in Houston, with 1 yr free replacement, or 30 month prorated warranty...this is standard warranty given with most batteries no matter where you purchase them. Battery went bad, SAM'S CLUB refused to honor warranty unless I reinstated my membership...which demonstrates why I cancelled my membership in the 1st place. My experience has been after taking into account the membership fee, and unless you do just about all your shopping there, you are lucky to break even...buy 3 gal of... read full review »