@dderevjanik/termux-api/src/scripts/termux-battery-status.ts

This library allows you to interact with your Android device from Node.js using termux-api

import { exec } from "child_process";

export interface BatteryStatus {
  /**
   * The health of the battery.
   * @example "GOOD"
   */
  health: string;

  /**
   * The percentage of battery remaining.
   * @example 73
   */
  percentage: number;

  /**
   * The plugged status of the battery.
   * @example "UNPLUGGED"
   */
  plugged: string;

  /**
   * The charging status of the battery.
   * @example "DISCHARGING"
   */
  status: string;

  /**
   * The temperature of the battery in degrees Celsius.
   * @example 21.0
   */
  temperature: number;

  /**
   * The current battery current in microamperes.
   * @example 691537
   */
  current: number;
}

/**
 * Get the status of the device battery
 */
export async function batteryStatus(): Promise<BatteryStatus> {
  return new Promise<BatteryStatus>((resolve, reject) => {
    const command = `termux-battery-status`;
    exec(command, (error, stdout, stderr) => {
      if (error) {
        return reject(`Error: ${error.message}`);
      }
      if (stderr) {
        return reject(`Error: ${stderr}`);
      }
      const output = stdout.trim();
      const battery: BatteryStatus = JSON.parse(output);
      return resolve(battery);
    });
  });
}