When will i get better battery backup with W10?

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Because I'm using Dell Inspiron laptop , i use to ask the question here.

Redstone 1 is good as compare to RS2 update. After major update installation, battery backup goes down. Now, my 1yr old laptop needs to recharge after 3hrs~.

If any MS team member read it,then Think About It.

--> HOPE for MYTHICALLY WIN10 FIXES <--