Energizer Specialty Lithium batteries have been developed to provide optimum, long-lasting performance for your electronic needs. So dependable, you can count on them day after day. Delivers long-lasting power to keep up with today's high-tech flashlights, flash units, and night vision goggles.• Performs in extreme temperatures from -40°F to 140°F• Holds power for 10 years when not in use• Leak-resistant construction• Replacement for: 1CR2, 5046LC, CR15H270, CR17355, DLCR2, EL1CR2, KCR2, RLCR2-2 Holds power for 10 years when not in use Leak-resistant construction | Energizer LLC Lithium Battery CR2, 2-Pack