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Orion TI-84 Plus Talking Graphing Calculator User Guide
keys in the bottom and middle are concave (hollowed or rounded inward like the
inside of a bowl). The other keys feel convex (curved or rounded outward like the
exterior of a sphere or circle). The On key is flat and slanted forward, and the
Enter key is larger than the other keys.
The screen is the rectangular flat section that lies between the Orion and the TI-
84 Plus. A row of five TI-84 Plus Function keys are found just below the screen.
2.3 Power Supply and Charging
The Orion TI-84 Plus Talking Graphing Calculator has two separate power
sources. The calculator uses four triple-A batteries while the Orion accessible
extension uses its own internal chargeable battery.
To install the batteries and charge the unit, follow the steps below:
Step
Action
1
Position the calculator so that the keys are pointing down and make
sure the two rubber feet are positioned at the top. Using your thumb,
find the battery door lever in the middle of the unit and pull down
toward the bottom of the unit. While applying downward pressure, pull
your thumb away from the unit and the battery door should open and
come off completely
2
Place each triple-A battery so that the flat end of the battery is
positioned against the spring. Tilt the battery and press it against the
spring. Push the battery flat into the opening until it snaps into position
3
Close the battery cover by placing the cover at an angle with the
thumb lever at the top and the two tabs at the bottom. Position the
tabs under the plastic edge of the opening and lower the lever until it
snaps into place.
4
Turn the calculator over so the keys face up. Plug the Mini-B end of
the USB cable into the Mini-B port on the top right side
Note: Fully charge the battery the first time you use the calculator. This should
take about four hours. You can use the Orion TI-84 Plus while it is charging.
The TI-84 triple-A batteries should last about several months. When they do
become low, you will receive a message at 5% indicating that you have about
several days of charge remaining in the triple-A batteries. Each time you turn on
The TI-84 it will announce that the batteries are low until you have replaced
them.
The Orion chargeable battery lasts about several days, depending on usage. Be
sure to always charge the unit before any important test or assignment.
Orbit Research
Proprietary Information
Version 1.0
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