I lost about 25 pints of scallops a couple of years ago. broke my heart.  i thought about inventing a defrost alarm, like a smoke alarm, that is battery powered. if the internal temp gets above 25*, a loud horn sounds.  i know some freezers have them, but they are powered by the plug, so in you case no  good. 
 
sorry for you loss
		 
		
		
		
		
		
		
		
		
	
	 |