Seems that the bottom case is bent due to the gaps near the airflow sl
I have a Macbook Pro 2017 with touchbar.
I've bought it as used but in the mint condition with only 51 battery cycles.
Some time ago I've noticed a gap between the bottom case and the body near airflow slots. They are rather small, about 1 mm. They disappear if i press a bit on the bottom case. Seems that I just didn't noticed the gaps before.
Now it has 57 battery cycles and I'm worried if the battery is ok. It lives about 5 hours under moderate load and feels ok.