You switched off wifi and data? Both should have been on.Thanks a lot for taking the time to reply.
Here is the DUMP file from last night. Followed the instructions.
The battery is around 18 months old.
I would really appreciate if you could point out what is causing my battery drain.
In the kernel wakelocks, I see some wakelocks from usb. Is this indicating a faulty usb-c port or charging flex? Not sure but any input would be really helpful.
Regarding the USB and Qcom step charging, see THIS.
System was trying to stop some apps for more than 5 hours.
Location/scanning was on? Shut it down.
Please take another dump with wifi and data on and post it here.