Energizer batteries are among todays longest-lasting disposable batteries, and their 9-Volt Ultimate Lithium Battery delivers the absolute peak of performance. Designed with lithium technology that helps meet the high current drains of many of todays devices. Made to such high standards, it holds power in storage for up to 20 years. Lightweight, leak-resistant and it operates in the most extreme temperatures. Per each. Wt: 1.2 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Batteries.