Phone I suggest using Shostock3 v2.5.1 with Jeboo Kernal 2.1

I suggest using Shostock3 v2.5.1 with Jeboo Kernal 2.1
With this combo you can use an app called "2nd Core" to shut off second cpu core and work on one, which saves a lot of battery. Really happy with battery life by doing this and you don't feel much performance lacking, unless you play heavy graphics games