Yeah, we will get a skimmed version like last time I think. I hope they include the camera update in this one and I wonder why India is always the last to get the updates. I really miss OnePlus in this regard.
You are getting a decent charge so just use it as usual until it fails. No need to replace it for now. Also try to completely drain the battery until it's 0 and charge it again. Do this twice or twice. If there are any electrons that aren't flowing t...
I guess you got a bad battery right from the start. Can't do much right now so better take it to the service center and replace it with a new one since it's gone bad and might fail any time soon. Sorry bro.