 
          62
        
        
          Fig.16
        
        
          
            Review your diagram
          
        
        
          
            Watch the video again. Rework your diagram if necessary. Fill in any
          
        
        
          
            gaps if you miss something
          
        
        
          
            Compare it with your groupmates. Tell about types of batteries using
          
        
        
          
            the diagram
          
        
        
          
            While listening to your groupmates, add details to your notes that
          
        
        
          
            you have missed
          
        
        
          
            TEXT B. TYPES OF BATTERIES
          
        
        
          
            Study the list of the words and check you understand them
          
        
        
          consumer
        
        
          energy capacity
        
        
          energy-to-weight ratio
        
        
          to go flat
        
        
          lead dioxide
        
        
          manganese oxide
        
        
          mercuric oxide
        
        
          potassium hydroxide
        
        
          to release
        
        
          remote control
        
        
          reverse direction
        
        
          solution
        
        
          to start an engine
        
        
          storage cell
        
        
          sulfuric acid
        
        
          torch
        
        
          vehicle
        
        
          wristwatch
        
        
          
            BATTERY
          
        
        
          
            PRIMARY
          
        
        
          
            Alkaline
          
        
        
          
            Batteries
          
        
        
          Characteristics:
        
        
          Applications:
        
        
          ?
        
        
          SECONDARY
        
        
          
            Lead Acid
          
        
        
          ?
        
        
          ?
        
        
          ?