To install the batteries and charge the unit, follow these steps:
1.
Turn 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 completely off.
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.
To close the battery cover, place 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 triple-A batteries in the TI-84 should have a battery life of several months. If they
become low, you will receive a message at 5%. At that point, you have several days of
charge remaining in the triple-A batteries. Until you replace the batteries, each time
you turn on the calculator, it announces that the batteries are low.
The chargeable battery in the Orion lasts several days, depending on usage. Always
charge the unit before any important test or assignment.
Operation Procedure
Follow these steps to turn the calculator on and off:
1.
To turn the device on, press the
On
key located at the lower left-hand corner of
the calculator positioned in column 1, row 1.
2.
To turn the device off, first press the
2nd
key located in column 1, row 9, and
then press the
On
key.
Note:
If the calculator is on and not in use for 5 minutes, it automatically powers off
safely without loss of data. At restart, it returns to the location and procedure of when
the unit was powered off. If you were using the Help mode, the calculator returns to
the location and procedure prior to the initiation of Help mode.
Help Mode
