Hewlett-Packard HP 39gII
The Hewlett-Packard HP 39gII is a graphing calculator with formula input logic. It has 51 keys, and an LCD (liquid crystal) display. The power source is 4xAAA. Note: HP-40G with IR port.
Facts at a glance:
If you have a Hewlett-Packard HP 39gII that is no longer working, you can first try replacing the 4xAAA 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: