Group 1 - The article discusses methods to extend the battery life of Android smartphones, particularly when the battery is low and users need to manage work messages or wait for contacts [1] - Basic settings to conserve battery include closing background applications, disconnecting Bluetooth and Wi-Fi, lowering screen brightness, and enabling super power-saving mode [1][3] - Advanced settings such as battery optimization, smart resolution, and smart charging mode are recommended to further enhance battery longevity [5][7] Group 2 - Battery optimization prevents applications from running freely in the background, which can significantly reduce power consumption [3] - Smart resolution allows users to switch to lower resolution when battery is low, and revert to high resolution for gaming or video playback [5] - Smart charging mode learns user charging habits and pauses charging when the battery exceeds 80%, helping to prolong battery lifespan [7][9]