note 3 exonys,lollipop and worst battery life.

hello all.i ma using now dr ketan lollipop version since 8 days and i am getting only 2.5-3 SOT hours..it is draining like 1%per minute or so....
waht is the possible solution to this?
i have read other thread about battery life.seems they get descent time with greenify,amplify and other stuff but lollipop not allowing me to install xposed framwork and module..
some advice please