Casio fx-9860G (Graphic Calculator)
The Casio fx-9860G 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 + CR1620 3V.
Facts at a glance:
|Power Source||4xAAA + CR1620 3V|
You can download the Casio fx-9860G manual from this external link.
If you have a Casio fx-9860G that is no longer working, you can first try replacing the 4xAAA + CR1620 3V batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: