# Summit SI-80

The Summit SI-80 is an arithmetic calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V.

## Facts at a glance:

Feature | Value |
---|---|

Type | Arithmetic |

Logic | Algebraic |

Display type | LED |

Length | 127mm |

Width | 86mm |

Power Source | PP3 9V |

Year introduced | 1975 |

## Replacements:

If you have a Summit SI-80 that is no longer working, you can first try replacing the PP3 9V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.

We suggest the following current models as possible replacements: