Casio fx-250c (SCIENTIFIC CALCULATOR)
The Casio fx-250c is a scientific calculator with 8 digits precision and algebraic logic. It has 38 keys, and an LCD (liquid crystal) display. The power source is 2xLR44 mercury cell. A sample of this calculator is held in the calculator.org collection.
Facts at a glance:
|Power Source||2xLR44 mercury cell|
You can download the Casio fx-250c manual from this external link.
If you have a Casio fx-250c that is no longer working, you can first try replacing the 2xLR44 mercury cell 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: