Fair enough. I’m using an OP12 myself. I still don’t buy into the “fast charge ok” bit, but I also know it’s parallel cells and such. I still charge overnight using a 5w charger. :)

I think that fast charging is almost as damaging as full cycles.

Its important to note that some models of Kobo are now fully repairable using parts from ifixit, down to motherboard and display.