Duracell Specialty 1/3 N High Power lithium batteries are made with high-purity lithium with up to 50% more power (vs. IEC standard test minimum average duration for CR11108 size. Results may vary by device and usage patterns) for your optic devices (red-dot sigths, laser sights), medical devices (glucose monitors) and electronic dog collars.
They have up to 10 years of in-storage guarantee so you can be confident these lithium batteries will be ready when you need them.