Lenovo IdeaPad 300-17ISK Notebook Review

[Redaktion]

Enduring. The Ideapad is a 17.3-inch laptop for the desktop at home. It scores with low operating noise, temperatures, power consumption and a long battery life.

http://www.notebookcheck.net/Lenovo-IdeaPad-300-17ISK-Notebook-Review.163437.0.html

[Radu]

I have read that this laptop has a non-removable battery. The videos I saw on Youtube of this laptop also suggest this.
Is it true ?
Also I would like to upgrade the RAM for this laptop. Will this decrease the 6 hour battery time or memory upgrade to 16 GB does not negatively affect the battery life?