"Product Description The Energizer Max 9V Alkaline Battery delivers reliable, long-lasting power for your everyday devices. Designed with a 5-year shelf life, it ensures your essential electronics are ready when you need them most. Perfect for smoke detectors, remote controls, radios, and other household gadgets. Energizer Max is built with leak-resistant technology and contains no added mercury, making it a safe and dependable choice for your power needs. Technical Information Battery Type: 9V Alkaline Model: 6LR61 / 522BP1-MAX Pack Size: 1 Battery (Single Pack) Shelf Life: Up to 5 Years Leak-Resistant: Yes Mercury Added: No Weight: 45g"