thanks for your reply... However I have a set of tools on TASKER (auto plane mode with screen off, no data, no wifi...)... I also have Greenify kill all possible + Xpossed with boot ini modules control etc. So I think I have done all possible here... Maybe my battery is dead because years... maybe? Do you know any way for testing battery live status?
Thanks!
Don't use tasker and greenify. Both tools use too much cpu utilisation, and play around with memory. Tasker is only good for automating tasks that are difficult or time consuming to do when needed. Though I would run scripts for that and run them in SManager. SManager can be prevented to run, to keep it from loading into memory to run in background. Thus making it a 2 step automation tool that will not stay in memory.
It seems you have basic uses for the apps being used to make memory clean and such.
To prove my point... run OS manager soon after reboot.
Watch the process list for about 2 minutes, it will show what loads and uses cpu comparing to system processes. OS manager should be on top about 70% or more after 3 minutes.
Restart the tablet again, and run OS manager and touch misc
To watch uptime and compare core utilisation. I have minimum core use hit at 2 minutes, single core use at 3 minutes, and after 6 minutes i have 1 core at minimum speed.
As for processes my percentage with one core at minimum speed is about 8% to 9% at 200mhz or 16 to 17% 100mhz if using custom kernel.
Once you can verify you are within the ball park, then you can test with battery fully charged and plugged in with the screen set to stay on for 10 minutes with screen dim. Open settings and view battery. Wait a few minutes and touch the screen after unplugging.
View battery condition over time. I would check at 6 minutes and watch until battery drops to 99%. 8 minutes should be good. Below 6 minutes bad battery. This only works for top charge, as the battery will produce more charge per percent after top charge has depleted. I can get 1 hour for every 8% used, while working away with my tablet.