Texas Instruments 4000M - Manual (Page 56)

Battery Saving Tips (Battips)
Double-click on this icon in the Notebook Group for
information about actions you can take to maximize the life
of a battery charge.
Dosnotes
Double-click the Dosnotes icon in the Notebook Group to
run the
NBHELP program that describes many of the the
DOS -level utilities.
Information Utilities
Custom Windows Utilities 3-5