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iFixit says the Switch 2 is even harder to repair than the original
(www.theverge.com)
This is a most excellent place for technology news and articles.
My understanding is that if they've lasted at least a month and haven't died on you, you probably got a "good" batch and what you have now will be what it stays as for the most part, but a fair number of gulikits just sort of crap out at the 1-2 mo mark.
So heads up on that.