Here is a picture I captured of my Surface from the inside.
In the part marked in red, there is a "problem" in my case.
As far as I can see, there is nothing there except this one heat pipe, which I doubt I raised the screen because it is connected to 4 screws on the cooler via the CPU.
The only possibility that comes to my mind is that there was a buldge on the sides or on the vertical edges, but someone skillfully glued it, so now it peeled off on the upper edge, but I don't believe that even though it started to break, it can be glued.
As you can see the battery is in the lower half of the Surface.
I don't think you need to be a scientist, and I would like someone from these foreigners to explain to me how they think it's a battery after all ...
What do you guys think?