HP 11C Batteries have lasted 22 years Message #1 Posted by nink on 22 June 2013, 12:54 p.m.
I bought the batteries for her in May 1991. To this day the calculator is running like a champ. Kudos to HP for the days when they were all about innovation, invention, quality.
Just wanted to say how long mine have lasted. I noticed on ebay that you all, in the museum, seem to have one with a similar life span on the batteries.
Well, yours is not the only anomaly.
I don't use the calculator all that much, maybe once a week if that. Still... 22 years is really impressive.
Thanks HP.
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