Duracell offers a wide range of batteries to be used in electronics that require reliable power. Duracell Plus D batteries are multi-purpose alkaline batteries with up to 50% more power (*Longevity performance compared to Minimum Average Duration in the 2015 IEC Portable Lighting test for D batteries. Results may vary by device or usage pattern. (www.iec.ch)), ideal for reliably powering everyday devices that require a kick of additional power. Duralock technology keeps unused Duracell batteries fresh and powered for up to 10 years in ambient storage. These batteries give you the freedom to enjoy the use of your appliances by giving you a product you can rely on. The Duracell Plus batteries are best used when you are looking for reliable, long-lasting power in your every day devices such as motorized toys, flashlights, portable games consoles, remote controls, etc. In 1969, Duracell was part of the Apollo 11 mission and became the first battery on the moon.