Well.. I have to charge my phone 3 times to make it through the day. Quite often when charging the phone shuts down. Sometimes I leave it on charge overnight but the battery never reaches 100%. Overall, the charging experience has been challenging, to say the least.
sorry bilux, i was not answering to you but asking the community since i have exactly the same anomaly (same phone and os version) about the battery status, though not the charging troubles you have.
by the way, to keep a battery ‘sane’ an advice says to charge it when it reaches 20% (no less) until 80% (maximum). letting it charging overnight or such a long time is not recommanded.
I’ve tried with various chargers. I have the less issues when I’m using Fairphone’s charger and cable. However this is not always possible and I need to use other charging devices. But even with the “original” charger I have issues, such as phone not charging over a percentage (e.g. 88%, and, no, I have not set an upper limit to charging) or charging very slowly.
Regarding the 20-80% rule that you’re suggesting I’m afraid it doesn’t work for me. I need to charge three times a day to keep my phone running!