Do DS cartridge batteries run dry?

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Do Nintendo DS cartridge batteries (do those games have batteries?) run dry after some time like GBA/GBC/GB games? Is it true that they will last at least 100 years or something?
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How long do DS cartridge batteries last?
Nintendo DS Battery life largely depends upon the game being played, but it can last about 10 hours, which is comparable to the Game Boy Advance SP.Do DS cartridges run out of battery?
A DS cartridge is like a micro SD card, so they don't have any battery inside. And regarding life expectancy of an SD card I'll quote SuperUser: Flash memory indeed has limited write cycles. However, by now it is unlikely that you'll encounter this within the normal lifetime of such a card.Do DS cartridges stop working?
PSA: Yes, Your DS And 3DS Cartridges Will Eventually Deteriorate, But Don't Panic - Nintendo Life.How long will DS cartridges work?
As most games save less than once or twice per ten minutes, I'd say that the electronics in a cartridge will go bad before you cannot save anymore. You will not be able to exhaust its write cycles. So, it should work for at least 40 or 50 years.\
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Images: Andrea Piacquadio, Andrea Piacquadio, Elina Sazonova, Harry Cooke