this post was submitted on 24 Jun 2025
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Physical Collectors "Should Plug In" Switch, 3DS And Vita Game Cards "Every 5-10 Years" To Avoid Data Loss (www.timeextension.com)
submitted 15 hours ago by finalaccountforreal@piefed.social to c/nintendo@lemmy.world
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[–] alsimoneau@lemmy.ca 3 points 12 hours ago (2 children)

Didn't those have a battery in them?

[–] GenderNeutralBro@lemmy.sdf.org 5 points 12 hours ago* (last edited 12 hours ago) (1 children)

Yes. Most original NES, SNES, and Gameboy cartridges have probably lost their saved data by now, but the batteries can be replaced relatively easily. If I remember right, they're a standard type, like the ones used for watches or hearing aids.

I know that some my old NES games retained their data at least into the 2000s. Been a while since I pulled them out and checked.

Edit: I realize this article is talking about the game data, not save data. I don't know what type of memory older games used for the ROM or if it needs periodic power. I think the batteries were only for the writeable save data.

[–] caseyweederman@lemmy.ca 3 points 11 hours ago

There's some variety, but it's either a 1616, 2025, or 2032. I believe they're all 3V.
The numbers represent the physical size. 1616 is 16mm in diameter and 1.6mm thick.
I didn't realize this before looking it up just now, but they're interchangeable, as long as you can get the battery to physically fit (and watch out for surprise voltage exceptions).

[–] ApathyTree@lemmy.dbzer0.com 1 points 11 hours ago

If they do, I doubt it has anything to do with the rom data, because my cartridges still seem to work. No way those batteries are still charged at this point.

I’m just not sure if they have the same re-write weakness. I assume they don’t, as we’d likely have heard more about it by now, but idk enough about how that stuff works/worked