The Panasonic Evolta AA1 battery is an alkaline battery. Alkaline batteries are designed for single-use applications and are known for their reliable and long-lasting power. These batteries are AA-sized, which is one of the most common battery sizes. AA batteries are used in a wide range of devices, including remote controls, flashlights, digital cameras, and many other household electronics. Panasonic Evolta AA1 batteries typically provide a voltage of 1.5 volts, which is the standard voltage for most alkaline batteries. This voltage is suitable for powering various low to moderate power devices.