HP 80 Business Pocket Calculator : Hewlett-Packard Calculator : Educalc.net

You can get batteries for your HP-80 at
http://www.internationalcalculator.com/batteries.html.

The cost is $39.00ea (exchange). You must send them your old battery and they will send you a replacement. I´ve used them for several years without a problem.

I purchased my HP-80 when they first came out in 1973 and have used it since that time. I love it and have never found another calculator that can match it.
Jim B.
7/9/2007 1:26:16 AM - SG | comment

get a 3 pack battery for a portable phone, and solder in the connections, being careful to put the red wire to the plus, and black to the minus. These ni-cad batteries are what I have used for years.

In reply to BillM:
Is it possible to obtain a new rechargeable battery pack for HP-80 calculator?

reply to BillM
1/11/2006 7:51:27 AM - CA | comment

You can purchase a 3 battery pack for a portable telephone, and simply solder the appropriate + to the Plus connection and the same for the minus. These are inexpensive batteries, and a cheaper way to go.
hp80
1/11/2006 7:49:08 AM - CA | comment

Bill,
I hope the link below functions. I purchased a very nice HP-80 on Ebay that didn´t include a battery. In visiting the HP Museum website(http://www.hpmuseum.org/), I was referred to this gentlemen who has been making batteries for vintage HP calcs for many years. Below is a link to an ebay site that was used for purchasing his batteries.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5761935873

I purchased my batter, and after charging it for the recommended time, have been using the calculator almost everyday.

Hope this helps.
Mike Barry
MBarry
5/20/2005 11:27:03 PM - US | comment

Is it possible to obtain a new rechargeable battery pack for HP-80 calculator?
BillM
3/25/2005 3:37:13 AM - US | comment


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