Casio BF-90 (Easy Banker)
The Casio BF-90 is a finance calculator with 8 digits precision and algebraic logic. It has 25 keys, and an LCD (liquid crystal) display. The power source is 3V cell. The calculator was manufactured in Japan. The calculator was also sold as the "Easy Banker". A sample of this calculator is held in the calculator.org collection.
Facts at a glance:
|Power Source||3V cell|
If you have a Casio BF-90 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: