A method comprising: determining battery usage attributed to a first application over a first time period, wherein the battery usage attributed to the first application over the first time period includes exceptional battery usage that occurred during the first time period; receiving a request to display a battery usage user interface; and in response to receiving the request: in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period meets qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that includes qualifier information that is indicative of one or more causes of the exceptional battery usage attributed to the first application over the first time period; and in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period does not meet the qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that does not include the qualifier information. determining battery usage attributed to a first application over a first time period, wherein the battery usage attributed to the first application over the first time period includes exceptional battery usage that occurred during the first time period; receiving a request to display a battery usage user interface; and in response to receiving the request: in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period meets qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that includes qualifier information that is indicative of one or more causes of the exceptional battery usage attributed to the first application over the first time period; and in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period does not meet the qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that does not include the qualifier information. in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period meets qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that includes qualifier information that is indicative of one or more causes of the exceptional battery usage attributed to the first application over the first time period; and in accordance with a determination that the exceptional battery usage attributed to the first application that occurred during the first time period does not meet the qualifier display criteria, displaying a representation of battery usage attributed to the first application over the first time period that does not include the qualifier information.