The experiment presents many other opportunities for further study. For example, does the length of a text message influence the amount of battery power it consumes? Does using the zoom or flash function on the camera put extra strain on the battery? The answers to these and related questions may offer a range of strategies for cell phone users who want to maximize battery life without sacrificing functionality. What is the purpose of the passage?to tell readers the best way to extend cell phone battery life to describe the procedures that were followed in the experiment to answer commonly asked questions about cell phone battery lifeto discuss related topics that can be explored in future experiments