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John, Engineer and electronic enthusiast for more than 12 years.
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My HP35s Scientific calculator will not stay for more than 3

Customer Question

My HP35s Scientific calculator will not stay for more than 3 seconds each time I turn it on.Can this be adjusted or corrected?
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Russell H. replied 1 year ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

The answer to your question depends upon one detail about how you start up the calculator:

- are you starting it up on battery power only?

- or, is it being started up on the AC adapter's power?

Customer: replied 1 year ago.
Battery Power only
Expert:  Russell H. replied 1 year ago.

Then the battery may be dead, or nearly. Rechargeable batteries always fail eventually.

(Or is it a non-rechargeable battery?)