Lasts up to 100% longer* (*Longevity performance compared to the Minimum Average Duration of the 2015 IEC AAA Motorized Toy test. Results may vary by device or usage pattern.) Our best battery, suited for everyday devices with extra performance for high drain devices Duralock technology keeps unused Duracell batteries fresh and powered for up to 10 years in ambient storage Available in AAA, AA, C, D and 9V sizes Superior Nylon top closure helps preventing our batteries from leakage