samsung tablet losing charge

A

AC Question

I know that this question has been asked, but my Samsung tablet seems to be losing more than usual charge when idle. Up to 20% in 25-30 hrs. I looked at "Battery" and it said, "Android OS" - 54%, "Google Play services" - 31%, "Device idle" - 11%, & "Screen" - 4%. I do have Facebook, Gmail, and update notifications. I am admittedly "technilogically challenged", so I apologize. Anything I can/should do? Thanks for your patience with me.