I have optimized my Lumia 650 so I can do 3-4 days with one battery charge. Among other things I have disabled a handful of background apps. Bu there are some processes I don't know what they are for and if it save to disable them.
- Content Delivery Manager
- Email and accounts
- Equaliser
- RingtoneApp.WindowsPhone
- Store Purchase App
- Windows Default Lock Screen
- Work or school account
- Xbox Identity Provider
- Your account
- Content Delivery Manager
- Email and accounts
- Equaliser
- RingtoneApp.WindowsPhone
- Store Purchase App
- Windows Default Lock Screen
- Work or school account
- Xbox Identity Provider
- Your account