The hardware I'm using:

  • OnePlus One, bought late december 2014

  • Stock Cyanogenmod, version 12.1 - YOG4PAS1N0 (= Android 5.1.1)

  • no apps to improve battery life in any way

Basically, the battery is just draining without any obviously strenuous activity. Previously, I would have competitions with a fellow OP1 user about who could push their battery life beyond the 3 day threshold. Now I go to work fully charged, the battery drops by 10% while I'm still on the 45min train ride to work and I return home with single digits or an empty battery.

After having a look at the battery stats I noticed this:


During work, I turned the screen on and off periodically to check WhatsApp and a little Fallout:Shelter (5min) on the loo but beyond that nothing happened. Screen battery usage was at 6%, so that can't be it.

Details for "Email" (Email, app version 2.6.1 (237), Boxer Inc):

  • CPU total/foreground: 2h 16m 30s / 52s

  • Keep awake: 1h 55m 54s

  • Mobile packets received/sent: 1655/1985

  • Mobile radio active: 53m 2s

  • Wi-Fi packets received/sent: 58/68

Details for "Android OS":

  • CPU total: 2h 3m 12s

  • Keep awake: 23m 48s

  • Mobile packets received/sent: 3293/3039

  • Mobile radio active: 1h 1m 15s

  • Wi-Fi packets received/sent: 293/282

Does anybody have a clue what's going on here? Because I'm straight out of ideas after checking if the Boxer Email has a recurring memory leak, restarting the phone, looking for a way to disable syncing the entire email archive in the app (who knows, might just be it) or testing if it is caused by push synchronisation...

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.