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devel / comp.sys.hp48 / Re: hp 50g won't run on batteries

hp 50g won't run on batteries

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Subject: hp 50g won't run on batteries
From: jansso...@gmail.com (odobo)
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by: odobo - Sat, 6 Aug 2022 19:23 UTC

Re: hp 50g won't run on batteries

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Subject: Re: hp 50g won't run on batteries
From: opticsm...@mindspring.com (optic...@mindspring.com)
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by: optic...@mindspring. - Sun, 7 Aug 2022 12:49 UTC

On Saturday, August 6, 2022 at 3:23:07 PM UTC-4, odobo wrote:
> Hello,
>
> 50g suddenly won't run on batteries. New batteries, press on, crazy lines and symbols on screen, then shuts off. Works with USB, passes all self tests. How to fix?
Did you change not only the four AAA batteries but also the memory-protect one? This is a wild guess but maybe if that battery is in a bizarre state it could cause a problem. From the manual:
Backup battery
A CR2032 back up battery is included in the calculator to provide power backup to volatile memory when changing the main batteries. It is recommended that you replace this battery every 5 years. A screen message
will indicate when this battery needs replacement.

Subject	Author
hp 50g won't run on batteries	odobo
Re: hp 50g won't run on batteries	optic...@mindspring.com