Chosen Solution
Sounds like another bad battery to me. Was the old battery having the same problem?
I replaced my Pixel 2 battery using the kit from iFixit. While I have not experienced the issue with it dying at 50% reported life, I do not feel like my battery life improved over the original (2-year-old) battery - I think it’s actually worse. I’ve calibrated it, deleted all unused apps, turned off BT, swept and hibernated apps with CCleaner, and updated to latest software. Not sure if it’s a bad battery or still something with my software.
