The average lifespan of batteries can vary significantly depending on several factors, including the type of battery, its usage, and environmental conditions. Generally speaking, alkaline batteries typically last anywhere from three to five years when stored under optimal conditions, while lithium batteries may have a life expectancy of around ten years or more, assuming they are not subjected to heavy usage. Other types, such as rechargeable batteries, often have a specific cycle life measured in charge and discharge cycles. For instance, nickel-metal hydride (NiMH) batteries can last for hundreds to thousands of cycles, whereas lithium-ion batteries usually last between 300 to 500 cycles before experiencing significant capacity loss. It is essential to refer to the specifications of individual battery models for precise information on lifespan, as performance may vary. For detailed lifespan information on specific batteries, please consider looking at the current web page to find individual product specifications or insights.