[jlokier]

That's a shame. I'm very happy with my 2013 rMBP, but would like to replace the battery. That's the only thing wrong with it.

People are still recommending second hand 2015 rMBPs as the "last good" ones. It would be a pity if they can't have batteries replaced.

[tim333]

You can DIY or get an independent repairer to do it. How to video https://www.youtube.com/watch?v=Lue6lVWhh4o batteries available on ebay, amazon.