| To RUN a program, press PRGM.  Select the name of the program.  
            Hit ENTER.  The name appears on the home screen.  Press 
            ENTER.
 
 To EXIT a program at any time, hit ON and choose QUIT.
 
 While newer calculators use a cable/computer connection to recharge the calculator, the older models use batteries.
 The older TI-83+/84+ use 5 batteries:  4 
                AAA alkaline batteries and one lithium battery.  The 
                lithium battery provides auxiliary power to retain memory while 
                you replace the AAA batteries.  When the battery voltage 
                level drops below a usable level, the calculator displays a 
                warning message when you turn it on.
 When replacing batteries:
 • 
                Do NOT remove both types of batteries (AAA and lithium) at the 
                same time.
 •  Do NOT mix new and old batteries.
 • Do NOT 
              mix brands of batteries.
 • Install batteries according to 
              polarity
              (+ and -).
 • 
            Always turn off the calculator when replacing 
          batteries.
 • Please, dispose of batteries properly.
 
 
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