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Ideal battery drain is too much.

Star III
Please check the Battery drain n fast charging Issue n add pubg ultra FPS in smooth that would b gud, even slow motion video recording please

Zen Master I
Hi salman64867,
 Battery drain: If you feel like the battery drains during using specific apps, we would suggest you test how much the app drains after using it for a certain time.
 We would suggest you clear the background apps, and check how much battery is consumed from 100% after using the app for a certain time (e.g. 1 hour.)
 Please show me a screenshot of the battery usage after testing.
 Settings > Battery > Three dots on top right > Battery usage.

 If there are battery drain issues in sleep mode, in order for us to verify, please kindly follow the steps below and show us the screenshots.
 1) Charge the phone to 100% before going to bed > remove the charger > Clear all apps in recent app list > turn off screen > the next morning before using the phone, please screenshot the two pages:
 a) Settings > Battery
 b) Settings > Battery > Three dots on top right > Battery usage.
 2) Tell me the battery variation: for example 23:00 (100%) > 08:00 (90%)
 3) In the meantime, were mobile network, WiFi, and Bluetooth turned on or off?
fast charging Issue: We would like to understand whether you're using the ASUS original charger. We suggest that you try with new cables and check again. 
Please also note that "fast charging/charging rapidly" appears after a few minutes when you plug in your charger. Please make sure to check your lock screen after a few minutes.
Furthermore, there are some scenarios that may affect the fast charging status: 
A.   If the system is under high resource usage (high temp) or the battery level is over 85%, the device will trigger a protection mechanism, which lowers the charging current.
B.   Check if there is some object or stain in the charging port. We recommend to use a soft brush to clean the charging port.
C.      We recommend to test charging in safe mode. How to enter safe mode:
If in safe mode, the problem is not observed, the system performance may be affected by 3rd apps. We recommend to factory reset the system. 
If the charging status is still unstable in safe mode, we recommend to go to repair center for further checking. 
If the problem still appears, please tell us at which battery levels does fast charging not work.
pubg ultra FPS:
This issue is expected to be improved through a future firmware update.
We will notify you once it is released.
slow motion video recording:
Sorry, slow motion video is not supported on ZB601KL.