If you pitched a fit and threatened to call home office they would have done something for you. You could go back and try that, they still may. That almost never fails, be sure to take names when arguing. If that fails actually call 1-800-wal-mart, often home office will do something if the store refuses. They will try and be slick about it, they will not warranty the battery but they will give you a gift card under customer satisfaction. The way Wal Mart looks at it is they would rather lose the cost of the battery to keep you happy and sell you thousands in groceries and other goods.
