The square in front of Museu d’Art Contemporani de Barcelona (MACBA) or the museum of contemporary art Barcelona is a place where many people demonstrate their skateboarding skills. It is interesting to hang out there and to chat with some of them. They all have very interesting stories.
I have just seen on Dell's support site a how to for replacing a battery of Dell XPS 15z. The battery of this computer is embedded and the replacement requires opening the box. But the procedure is really straightforward. I have also searched a non-Dell place where one could buy a cheap replacement battery but unfortunately did not find any. The only I know is Dell and price tag is about $185 – which is pretty expensive.
By the way, there is one procedure which I follow to extend the battery life of my computer. When it is plugged, I disable battery charging from the power options – (down right next to the clock or Fn+F3). Based on my prior experience this approach extends the battery life to years unless the battery has some fabrication defect.