Convenient 12 Pack of Alkaline D Batteries Guaranteed 10 Year Shelf Life Great for D Battery Devices; Toys, Stereos and More Backed by the Trusted Member’s Mark Brand. Stock up on bulk batteries for all of your D battery device needs. Member's Mark Alkaline D Batteries provide the power you need to keep your D battery power hungry devices going, from flashlights, smoke detectors and stereos, to your child's favorite games and toys. You can buy in confidence knowing that these batteries have a guaranteed 10-year shelf life, so you can trust they will be ready when you need them. This bulk pack of 12 batteries is an outstanding value – making it the perfect choice for homes, schools, companies, and more. Member's Mark Alkaline batteries also have zero mercury added. Because this 12 pack of D cell batteries is backed by the Member's Mark brand, you can trust each battery has undergone rigorous testing and meets the highest standards of quality and long lasting performance. The Member’s Mark battery size range also includes AAA, AA, C, and 9V alkaline batteries – all available in bulk packs and all backed by the Trusted Member’s Mark Brand. These Member’s Mark D batteries are also covered by the Sam's Club Member Satisfaction Guarantee. We are confident that you will be delighted with your Member's Mark purchase. Made in the USA.