Panasonic 554 (JE-554U)
The Panasonic 554 is a programmable calculator with 10 digits precision and algebraic logic. It has 166 functions, 50 keys, and an LCD (liquid crystal) display. The power source is 2x1.5V mercury cell.
Facts at a glance:
|Power Source||2x1.5V mercury cell|
If you have a Panasonic 554 that is no longer working, you can first try replacing the 2x1.5V 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: