Try our next generation of power. Upgrade your devices with the new Duracell Optimum - our best performing AA alkaline battery. Duracell's most groundbreaking innovation yet, the all new Duracell Optimum alkaline battery has a new cathode system that can deliver up to 200% Extra Life in some devices, or Extra Power in other devices*. - Extra Life - Duracell Optimum lasts longer than previous Duracell Alkaline in a range of mid to high drain devices, such as cameras and game controllers**. - Extra Power - In other devices Duracell Optimum delivers more power than other Duracell Alkaline batteries to make them work better, such as motorized toys and DIY devices***. - Optimum Storage - new and innovative ‘book' style pack has a door and an organiser tray inside keeps new batteries in place and allows secure storage of used ones for recycling. - The packaging is 100% recyclable and 0% plastic. - Optimum batteries are available in size AA and AAA. *Delivers extra life in AA-size batteries compared to the Minimum Average Duration of the 2015 IEC Digital Camera test OR extra power in a wide range of devices vs. next best Duracell alkaline AA. Results may vary by device or usage pattern (www.iec.ch). For more info: www.duracell.co.uk **Delivers extra Life in a wide range of devices vs. next best Duracell alkaline AA. For more info: www.duracell.co.uk ***Delivers extra power in a wide range of devices vs. next best Duracell alkaline AA. For more info: www.duracell.co.uk