Black Charger Fire

Black Charger Fire measures actual battery usage using information from the battery charge controller. Battery usage for each app is determined by combining these measurements with information about which apps are running in the background. Every time you charge your device, it drains the battery, reducing its total capacity. Scientific research shows that battery life can be extended up to 200%, when you charge your device to only 80%. Android calculates battery usage using built-in profiles provided by the device manufacturer, such as how much power the CPU uses. In practice, however, these numbers tend to be highly inaccurate. Batteries have a limited lifespan.