When pressing F flash does not stay on.

So after I have a flashlight after I make hastorch = true which kinda works but the torch does not stay on. Sorry about the long post. Here is my FlashLight script.

 var lightSource : Light; 
 static var EnergyPerBattery : float = 75;
 static var BatteriesLeft : int = 0; 
 static var turnedOn : boolean = false; 
 private var drainSpeed : float = 0.5;
 static var hastorch = false;
 
  
  
 function Update () {
    if(hastorch == true){
         if (Input.GetKey(KeyCode.F)) ToggleFlashlight();
     }
 }
  
 
 function ToggleFlashlight(){
    if(hastorch == true){
      turnedOn=!turnedOn;
         if(turnedOn && EnergyPerBattery>0){
                TurnOnAndDrainEnergy();
        }
 } 
     else{
        lightSource.enabled = false;
     }
 }
  
 
 function TurnOnAndDrainEnergy () {
         lightSource.enabled = true;
         while (turnedOn && EnergyPerBattery>0) {
            EnergyPerBattery -= drainSpeed*Time.deltaTime;
                yield;
         }
     lightSource.enabled = false;
         
 }
 
 function OnGUI(){
     GUI.Box (Rect (Screen.width - 100,Screen.height - 50,100,50), EnergyPerBattery.ToString());
     
 }
 
 static function AlterEnergy (amount : int){
     
 }

Here is my PickUpTorchScript

 var batteryPower : int = 10;
 
 var hit : RaycastHit;
 var mesh : GameObject;
 var Range : float = 1;
 var LookingAt = false;
 var Destroyed = false;
 
 
 
 function Update (){
 
 
 var fwd = transform.TransformDirection (Vector3.forward);    
     var hit : RaycastHit;
         if(Physics.Raycast (transform.position, fwd, hit, Range)){
         Debug.DrawRay(transform.position, fwd * Range, Color.red);
             if( hit.collider.gameObject.tag == "Torch"){
                 LookingAt = true;
                     if(Input.GetKeyDown(KeyCode.E)){
                         Destroy(mesh);
                             Destroyed = true;
                             LookingAt = false;            
             }
             else if( hit.collider.gameObject.tag == null){
                 LookingAt = false;
             }                
         }
     }
     if(Destroyed == true){
         FlashLight.BatteriesLeft += 1;
         FlashLight.hastorch = true;
     }
     
 
 }
 function OnGUI(){
     if(LookingAt == true){
         GUILayout.BeginArea (Rect((Screen.width/2)-50, (Screen.height/2) , 100, 100));
         GUILayout.Label ("E To Interact");
         GUILayout.EndArea ();        
      }     
 }