getBattery
Category Sensors
Provides information about the system's battery charge level and lets you be notified by events that are sent when the battery level or charging status change.
Demo
{ "isSupported": false, "charging": 0, "chargingTime": 0, "dischargingTime": 0, "level": 1 }
Usage
Type definitions
import type { CleanupFunction } from '../../__internal__/types.js';
export interface BatteryManager extends EventTarget {
readonly charging: number;
readonly chargingTime: number;
readonly dischargingTime: number;
readonly level: number;
}
type GetBatteryOptions = {
/**
* Whether to auto-cleanup the event listener or not.
*
* If set to `true`, it must run in the component initialization lifecycle.
* @default true
*/
autoCleanup?: boolean;
};
type GetBatteryReturn = {
/** Whether the {@link https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API | Battery Status API} is supported by the browser or not. */
readonly isSupported: boolean;
/** Whether the battery is currently being charged or not. */
readonly charging: number;
/** The remaining time in seconds until the battery is fully charged, or 0 if the battery is already fully charged. */
readonly chargingTime: number;
/** The remaining time in seconds until the battery is completely discharged and the system suspends. */
readonly dischargingTime: number;
/** The system's battery charge level scaled to a value between 0.0 and 1.0. */
readonly level: number;
/**
* Cleans up the event listeners.
* @note Is called automatically if `options.autoCleanup` is set to `true`.
*/
cleanup: CleanupFunction;
};
/**
* Retrieves information about the battery.
* @see https://svelte-librarian.github.io/sv-use/docs/core/sensors/get-battery
*/
export declare function getBattery(options?: GetBatteryOptions): GetBatteryReturn;
export {};