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HP Forums / HP Calculators (and very old HP Computers) / General Forum v / Memmory retention without battery in pioneers

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Memmory retention without battery in pioneers
07-16-2014, 03:07 PM (This post was last modified: 07-16-2014 03:09 PM by ElectroDuende.)
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ElectroDuende Offline
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Memmory retention without battery in pioneers
This morning I discovered th HP27S that I usually have in my desk turned upside down and with the battery compartment open (and empty!). a colleague explained me that he urgently needed LR44 batteries for his laser pointer to make a presentation yesterday afternoon, and that was the only place to find them.

So I got the batteries back, put them on the calculator and powered ON, expecting to have lost all the formulae (quite a lot, useful for daily work), and was greeted by a "MACHINE RESET" message. Anyway, all the formulae were still there after about 15 hours without battery!

I suppose that the clue is that nobody pressed ON while it was unpowered...
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Memmory retention without battery in pioneers - ElectroDuende - 07-16-2014 03:07 PM



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