Battery life:
After 2 weeks of testing I came to a maximum battery life of 6-7 hours at a charging time of 2.5 hours. I am very happy because this term loosely sufficient for a day at the university.
Hard disk:
In order to answer the question which hard drive is installed here: a 500GB HDD.
All in all it can be said that this is a very good ultrabook for this price.