article_snippet: You may be mystified as to why your phone’s battery can drain in a matter of hours.
article_snippet: And while mobiles have a large number of adjustable settings which can be tweaked to prolong battery life, mobiles are often tricky to understand.
article_snippet: This is because the app intermittently takes measurements about the device and how the device is being used.
article_snippet: For example, it might point out that Twitter is using an unusually large amount of power compared to on other phones, indicating that either an individual is hooked on the social media app, or that an individual could contain an energy-sapping bug.
article_snippet: The results of the analysis are then sent back to the app, in order to give users instructions on what to do to improve the life of their phone.
article_snippet: For example, it might point out that Twitter is using an unusually large amount of power compared to on other phones, indicating that either an individual is hooked on the social media app, or that an individual could contain an energy-sapping bug.
article_snippet: energy-hungry and closing Apps could result in battery  life.
article_snippet: Similarly, Carat lists some apps under ‘Bug Report,’ which are associated with increased energy use on an individual user’s phone.
article_snippet: Apps and settings listed under the title of ‘Hog Report’ (shown left) are shown to be energy-hungry and closing such apps could result in battery life.
article_snippet: The confidence level (shown right) indicates how likely it is that closing an app will make a difference to battery life .