For example I charged my phone (pixel 1 XL) before I went to sleep. I charged it to about 85% at 11pm. I took it off charge and went to sleep. At 530am I woke and checked the phone to check the time. The battery was at 15% and in power saver mode.. Usually I get 1 day usage (6am to 6pm, with streaming music to my headphones at the gym and messaging throughout the day) and get home with 65% battery. This issue has come back again now that I am traveling abroad.
I reset the phone to factory yesterday and only installed webex teams and whatsapp. The issue persisted yesterday. At lunch, we spent around half an hour eating and the phone was screen off and on the table and the phone dropped from 65% to 55%. I decided to remove webex teams and reboot the phone. The battery remained at 53% for approx 2 hours. I thought eurika, webex teams is the culprit. But unfortunately last night the same battery drain issue occurred and I had to charge the phone again at 5am.
I dont know that the issue is occurring until it is occurring.
The battery usage shows no usage by apps during this issue, and same when I show all device usage - for example I'll have say webex teams using 1% and screen using 1% but the device has dropped 60% of battery and there is no indication of where.
I dont mind to install a custom rom but I have not done any custom installs on this phone at all at this point.
Also I never used NFC until a few months ago for the banking app which I used to have. I just realised NFC was on yesterday and I've just switched it off. I just wont know if this helps until later today when the battery is dropping quickly. Although it just dropped 2% while typing this so I dont think it has helped. I just turned on data saver and battery saver and will see.
I am at a bit of a loss - has anyone else had this problem and found the culprit or a fix?
Update - battery saver and data saver does not stop the battery drain. 2% drop in 20 minutes with phone on the desk with screen off.