Duracell Optimum 200%Extra Life Power AA 1.5v Alkaline Battery Pack 20 Batteries\n Brand New\n\nDuracell Optimum AA batteries provide up to 200% extra life and extra power (compared to the Minimum Average Duration of the 2015 IEC Digital Camera test. Results may vary by device or usage).  \nExtra Life: Duracell Optimum will last longer than previous Duracell Alkaline batteries in a range of mid to high drain devices (e.g. Xbox One Wireless Controller, Fujifilm Instax mini 11 camera).  \nExtra Power: In other devices, Duracell Optimum will deliver more power than previous Duracell Alkaline, making them work better (running motors faster in remote controlled cars). So your screwdriver can operate with more power to build your DIY furniture faster.  \nBattery care tips to help maximize your experience, and ensure safe usage with Duracell batteries:\n--When inserting batteries into your device, please take care to match the right polarities (+ and - ends) marked on the bats