The Sharp EL-5813 is a programmable calculator with 8 digits precision and algebraic logic. It has 41 keys, and an LCD (liquid crystal) display. The power source is 2xSR44.
Facts at a glance:
If you have a Sharp EL-5813 that is no longer working, you can first try replacing the 2xSR44 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: