So I got my Helltec MeshPocket in the mail a couple of days ago and noticed that even after a day and seven hours worth of usage it still was not telling me that it was on battery and that it was on AC when I know that not to be the case.
I currently have my ADC multiplier set to 4.516. I know its not fully accurate, but it is much closer.
Edit: I believe 4.516 to be too low. I am trying to narrow the range down some, but I believe 4.53 might be a somewhat better estimate.
Edit 2: After further testing, I came up with 4.535, which seemed to track properly in the app for normal battery drain, but according to the manual, the device stops charging external devices at 5%, which required 4.750. I couldn't honestly decide which to go with, so instead I decided to average the two together for a total of 4.6425
https://github.com/meshtastic/firmware/pull/8137