Hello,
I only recently purchased Teclast Tbook 16 Power and I immediately noticed the battery drain when the tablet was idle with Android booted.
I analysed the problem with GSAM Battery Stats and found that the source of the drain was that the kernel was trying to connect to mobile data. This tablet has no mobile data and therefore, there is no possibility to “click-off” the mobile data toggle. I know that there are a lot of apps that can do this trick, but here is my
Simple solution:
Step 1: Activate Airplane mode. When you do this Android instructs the kernel to stop looking for any kind of network.
Step 2: Turn on WiFi. Yes, WiFi can be turned on under Airplane mode. (Same applies to Bluetooth).
That’s it. No customs ROMs, no additional apps. Now the battery decrease when idle is about 1% per 2-3 hours, which I consider to be normal. In addition, I use ForceDoze to make the tablet go into Doze mode quicker. (Mine came with preinstalled Android 6.0)
I hope I helped.
