I needed to upgrade my x220. The newer X series is almost as big as the T series, and is really limited in terms of memory. I ended up getting a T480 which is nice at home, but too big on the road.

I looked really hard at System76, but I need a trackpoint. I also looked at the x210, and at the time I thought that was too much work, I'm starting to think it might be worth it.

My biggest issue with the x210 is that it's hard to find decent batteries. All the 3rd party batteries I've bought have degraded to <50% of their design capacity within 6 months. I need to buy some decent 18650 cells and replace the low quality ones in the aftermarket batteries.

I have this exact problem, both me and my wife are still on X200s, but we've only one decent battery between us, and that's unlikely to last long.

Is replacing the cells enough, though? Isn't there a controller that needs resetting as well?

It is a little tricky: https://hackaday.io/project/245-replacing-lenovo-laptop-lith...