I suggest you try Mokee's Latest build which is today 21st September .
I will provide you the link also... I am very happy with its battery life & performance as usual superb by Mokee's.
I have underclocked the CPU & Installed Greenify & hibernated almost all the apps... hence i can juice out maximum life out of each charge & allow discharge when in use only !!!
I thought i could share this method with you also....