ramcard with batteries vs ramcard without batteries for hp 48gx

[hpmin48gx]

hello good afternoon with the forum I would like to know what advantages or disadvantages has the ramcard that does not have batteries vs one that does have batteries

[Allen]

The RAM cards with an internal (rechargeable) battery are much harder to service compared to the ones with a replaceable CR2016 Cell.

I imagine after 30+ years, many of the internal batteries have corroded or failed.

[rprosperi]

(12-23-2022 06:09 PM)hpmin48gx Wrote:  hello good afternoon with the forum I would like to know what advantages or disadvantages has the ramcard that does not have batteries vs one that does have batteries

There is exactly one advantage; you can move the card with contents intact to a new 48.

And it's useful here to remind folks that in a 48 RAM card, you must turn the 48 ON and keep it ON while changing the battery; when the calc is off the cards do not get power.

There are also FRAM cards available that require no batteries, and are very nice, but much more expensive.

[okto]

I’m curious about the issue with moving contents to a new calculator. Is there an issue with that normally?