Grade AA batteries: 3 Volt, fresh with strong & reliable power, high energy density, high capacityLong-lasting plus 5 years shelf-life: premium performance in the industryUltra safe and leak-proof: 0 % mercury, special sealing and coating technologyMultiple uses: work like a charm in flameless candle, light, remote control, key fob, alarm/contact sensor, smart devices and moreEquivalent to models like DL2450, ECR2450, GPCR2450, CR 2450 We are a long-standing lithium battery manufacturer that offers powerful and durable products to customers from global market. Your devices will have high performance when powered by our high-capacity batteries. In this product, every battery has individual cell for safe storage and long shelf life. Please follow instructions on the back of product package to properly use and store batteries. A ‘Best If Used By’ Date is specified on the back of product package for your reference. Please feel free to contact us if you have any questions about our products. We will provide product support any time if you ask. We also welcome you to share user experience with the community by writing product review!