Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The BatteryManager interface of the Battery Status API provides information about the system's battery charge level. The navigator.getBattery() method returns a promise that resolves with a BatteryManager interface.
Since Chrome 103, the BatteryManager interface of Battery Status API only expose to secure context.
Also inherits properties from its parent interface, EventTarget.
BatteryManager.charging Read onlyA Boolean value indicating whether the battery is currently being charged.
BatteryManager.chargingTime Read onlyA number representing the remaining time in seconds until the battery is fully charged, or 0 if the battery is already fully charged.
BatteryManager.dischargingTime Read onlyA number representing the remaining time in seconds until the battery is completely discharged and the system suspends.
BatteryManager.level Read onlyA number representing the system's battery charge level scaled to a value between 0.0 and 1.0.
Also inherits methods from its parent interface, EventTarget.
Also inherits events from its parent interface, EventTarget.
chargingchangeFired when the battery charging state (the charging property) is updated.
chargingtimechangeFired when the battery charging time (the chargingTime property) is updated.
dischargingtimechangeFired when the battery discharging time (the dischargingTime property) is updated.
levelchangeFired when the battery level (the level property) is updated.