Texas Instruments TI-83 PLUS - Manual (Page 741)

TI-83 Plus General Information 738
Note: To avoid loss of information stored in memory, you must turn off the
calculator. Do not remove the AAA batteries and the lithium battery
simultaneously.
3. Replace all four AAA alkaline batteries simultaneously. Or, replace
the lithium battery.
•
To replace the AAA alkaline batteries, remove all four discharged
AAA batteries and install new ones according to the polarity
(+ and
N ) diagram in the battery compartment.
•
To replace the lithium battery, remove the screw from the lithium-
battery cover, and then remove the cover. Install the new battery,
+ side up. Replace the cover and secure it with the screw. Use a
CR1616 or CR1620 (or equivalent) lithium battery.
4. Replace the battery compartment cover. Turn the calculator on and
adjust the display contrast, if necessary.