void Update(object state)
        {
            this._batteryInfo = BatteryInfo.GetBatteryInformation();
            if (this._last_batteryInfo.CurrentCapacity != this._batteryInfo.CurrentCapacity)
            {
                this._last_batteryInfo = this._batteryInfo;

                this.BatteryStatusUpdate?.Invoke(this, this._batteryInfo);
            }
        }
 public BatteryStatus()
 {
     this._last_batteryInfo = new BatteryInformation();
 }