I'm still holding on to my 2015 Kindle Voyage. I don't like any other model I've tried, and they stopped selling these Voyages many years ago now. So I have to deal with the old battery. But it still lasts for a week or so, I just have to charge it on weekends. When it was new it would go for about six weeks. I know you can buy Chinese replacement batteries for it, but I worry about the quality control of those, so until the battery goes completely dead I'll stick with it. Then I might try an aftermarket battery out of desperation.