After update windows 7 to windows 10 laptop battery draining very fast why ?

[WPCentral Question]

Recently i have updated to windows 10, After this update i was facing battery draining issues, Even i have stopped all online and background application still having same issue.

 

[Rising Mos]

How recently? It is expected to have battery drain for the first few hours (first day) because the os is indexing, optimizing and such.