Duracell offers various batteries for electronics that require reliable power. Duracell Ultra AAA batteries are alkaline batteries ideal for powering all your devices, with better performance for devices that require a lot of power. The Duracell Ultra battery has up to 100% more power for all devices. (For AAA-sized batteries compared to the minimum average duration of the IEC motorized toy test. Results may vary by device or usage pattern. (Www.iec.ch)). With the Powercheck technology you can easily see how much energy each battery has left, so unnecessary interruptions can be avoided and you can reuse your batteries in devices that require less energy, even when they no longer work in devices that use a lot of energy ( keep batteries together and do not mix them with other unused batteries in the device). Press the white dots on both ends of the battery and see how much energy is left in your batteries. With Duralock technology you can store your Duracell batteries for up to 10 years. These batteries are the best alkaline article from Duracell for devices with high energy consumption, such as digital camera, flash, toys or boxes, and are of course also suitable for devices such as motorized toys, flashlights, portable controllers, shavers, toothbrushes and other products.