OK. Lets look at the facts.
You are getting constant battery level indications in Hekate
Battery is at a decent voltage
Replaced M92T36
So at the moment, I`m ruling out the BQ24193 as your battery stats are consistent.
I`d rebuild your NAND.
Back up BOOT0/1 and PRODINFO / PRODINFOF
It is easy to do. You MUST make sure you have decent backups of the above partitions. Backup, then backup again. And again.
Get your BIS keys, download memloader and hacdiskmount (and etcher)
I`m not going to make a guide of rebuilding NAND as Canna and Rajkosto have it covered already.
@Canna has made a brilliant guide
HERE
Then follow Rajkosto`s guide
HERE