Goal Zeros AA Batteries Adapter Pack can be used time and time again with quick recharges between uses to keep your electronics going strong. The four batteries have a low self discharge, which means they can sit on a shelf for up to 12 months before they start to lose power. Includes AAA-battery insert for use with the Guide 10 Plus Recharger (not included) to charge USB devices. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Battery Packs.