The Casio fx-3800P is a programmable calculator with 10 digits precision and algebraic logic. It has 42 keys, and an LCD (liquid crystal) display. The power source is 3V cell.
Facts at a glance:
|Power Source||3V cell|
You can download the Casio fx-3800P manual from this external link.
If you have a Casio fx-3800P that is no longer working, you can first try replacing the 3V cell battery. 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: