How is the battery in Lenovo K8 Note?

The battery is in the Lenovo K8 note because a person and/or machine put it in the Lenovo K8 Note. That is how the battery is in the Lenovo K8 Note.

I think lithium and ion

Lenovo K8 Note is 4000 mAh
Hours in standby (approx.)- 130 h
Hours of web browsing (approx.)- 17 h
Hours of music (approx.)- 83 h
Hours of telephone (approx.)- 19 h
Hours of video recording (approx.)- 5 h