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FLISZT · 11-20-2024, 06:12 PM

Hello,

First of all, I have to say that I'm not complaining. The HP 50G is an excellent machine.
To avoid any memory loss, several solutions (already mentioned) are available: port 2, port 3 (SD-Card) and USB cable.

As for the CR-2032 batteries from IKEA, I strongly suppose they're not as good as Energizer batteries, for example. (According to the IKEA website, these batteries no longer seem to be available.)
However, the CR-2032 that saves time and date in my old PC (Win98 updated to Win98 2nd Ed.) lasts several years. It's not the same type of device as a calculator, but...

In an HP 50G, I don't know how the memory backup is divided between the AAA batteries and the CR-2032 battery. Does the CR-2032 ensure memory backup even when AAA batteries are present? This could explain why they are more than “tired” when it's time to change the AAA batteries.
What's more, it seems to me that the time and day are not saved when the calculator is stocked with only a CR-2032 battery.

Finally, the manufacturing differences mentioned by franz.b between the old CR-2032 and the current ones seem very interesting to me.

Just putting my 2 cents in.