Duracell High Power Lithium batteries have a 10-year guarantee in storage, so you can be confident these batteries will be ready when you need them. They offer long-lasting power for your specialty devices. Battery Features Duracell high power lithium batteries are designed and developed for long lasting performance. Duracell CR2 high power lithium batteries are guaranteed for 10 years in storage. Duracell high power lithium batteries are designed to provide long lasting, reliable power to your specialty devices. #1 Trusted Battery Brand: This Duracell CR2 High Power Lithium battery is equivalent to 3V CR17355, DLCR2, ELCR2.