How long can a new, unused lithium ion battery last?

JohnJSal

Active Member
Hi all. So I got excited when I saw that Nintendo once again had replacement batteries for the Nintendo 3DS system in their online store (after they were removed a few months ago), and I may have ordered a few too many!

After I ordered, I got to wondering, is it good to even keep them around unused for too long, as backups for years down the road? How long can they last if I don't use them?

Thanks!

(I posted here because I figured it's a power-related issue, although granted not really computer-related. Hope that's okay! I just like these forums.)
 
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