Casio fx-9860GII (Graphic Calculator)
The Casio fx-9860GII is a graphing calculator with 10 digits precision and formula input logic. It has 52 keys, and an LCD (liquid crystal) display. The power source is 4xAAA.
Facts at a glance:
If you have a Casio fx-9860GII that is no longer working, you can first try replacing the 4xAAA batteries. If that doesn't solve the problem, then a repair might be possible, although you have to weigh up the costs against just buying a new one, as this model is still currently available.