So I know we’ve all been there were you charge your battery to it’s full capacity, and miraculously about an hour and a half later your phone is on it’s last brink of life. Well according to the app Carat this can all change if you download their app. It is designed to work as follows: When you download the app it will take measurements about your device and usage habits. The info will then be shipped off to UC Berkeley servers where it will be analyzed. The information is sent back to your phone, which will show you how to use your phone so that the battery life will last much longer. The above image shows how it will be displayed on your phone, and the below image shows exactly how the app works.