title: Life span of a battery
body: <p>is there a way or how to get or to know the life span of the battery? I'm making a Battery Information just like in the "Battery Doctor Saver Pro" the difference is that the life span that i need. i don't have any idea on how to do it. can anyone help me with this? THANKS for your help. :) so far this is my code without the "Life Span" that i said. </p>
  
  <pre><code>private BroadcastReceiver battery_receiver = new BroadcastReceiver() {
  
          @Override
          public void onReceive(Context context, Intent intent) {
              boolean isPresent = intent.getBooleanExtra("present", false);
              String technology = intent.getStringExtra("technology");
              int plugged = intent.getIntExtra("plugged", -1);
              int scale = intent.getIntExtra("scale", -1);
              int health = intent.getIntExtra("health", 0);
              int status = intent.getIntExtra("status", 0);
              int rawlevel = intent.getIntExtra("level", -1);
              int level = 0;
  
              Bundle bundle = intent.getExtras();
  
              Log.i("BatteryLevel", bundle.toString());
  
              if (isPresent) {
                  if (rawlevel &gt;= 0 &amp;&amp; scale &gt; 0) {
                      level = (rawlevel * 100) / scale;
                  }
  
                  String info = "Battery Level: " + level + "%\n";
  
                  info += ("Technology: " + technology + "\n");
                  info += ("Plugged: " + getPlugTypeString(plugged) + "\n");
                  info += ("Health: " + getHealthString(health) + "\n");
                  info += ("Status: " + getStatusString(status) + "\n");
  
                  setBatteryLevelText(info + "\n\n" + bundle.toString());
              } else {
                  setBatteryLevelText("Battery not present!!!");
              }
          }
      };
  
      private String getPlugTypeString(int plugged) {
          String plugType = "Unknown";
  
          switch (plugged) {
          case BatteryManager.BATTERY_PLUGGED_AC:
              plugType = "AC";
              break;
          case BatteryManager.BATTERY_PLUGGED_USB:
              plugType = "USB";
              break;
          }
  
          return plugType;
      }
  
      private String getHealthString(int health) {
          String healthString = "Unknown";
  
          switch (health) {
          case BatteryManager.BATTERY_HEALTH_DEAD:
              healthString = "Dead";
              break;
          case BatteryManager.BATTERY_HEALTH_GOOD:
              healthString = "Good Condition";
              break;
          case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
              healthString = "Over Voltage";
              break;
          case BatteryManager.BATTERY_HEALTH_OVERHEAT:
              healthString = "Over Heat";
              break;
          case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:
              healthString = "Failure";
              break;
          }
  
          return healthString;
      }
  
      private String getStatusString(int status) {
          String statusString = "Unknown";
  
          switch (status) {
          case BatteryManager.BATTERY_STATUS_CHARGING:
              statusString = "Charging";
              break;
          case BatteryManager.BATTERY_STATUS_DISCHARGING:
              statusString = "Discharging";
              break;
          case BatteryManager.BATTERY_STATUS_FULL:
              statusString = "Full";
              break;
          case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
              statusString = "Not Charging";
              break;
          }
  
          return statusString;
      }
  </code></pre>