NanoWatt XLP Battery Life Estimator is a free software tool that helps users develop applications with Microchip's PIC MCUs featuring XLP technology. The utility estimates average current consumption and battery life, allowing users to select the target device, battery type, and the application's operating conditions such as voltage and temperature, as well as model active and power-down times for their applications. This tool is pre-loaded with specifications of Microchip's PIC MCUs featuring nanoWatt XLP technology and is commonly used.