All hardware sucks
The battery on my 2012 macbook pro finally gave up the ghost (after staggering along for several weeks getting more and more flakey) so I had to salvage a battery from a macbook pro that was sitting in the deadline (because of the Pepsi Syndrome; replacing the keyboard will involve pulling the entire machine apart so I’ve been putting it off indefinitely) and swap it in in place of this one (which will, if I can carve out 30 minutes, be taken off to the recycling center along with all the other dead high explosive batteries I’ve got lying around the house.)
And, yeah, I noticed the warning. OH NOES IT WILL VOID MY (already expired for two years now) WARRANTY. But I’ve now got a once again functional macbook pro to take the sting of the voided warranty away.