rayonline:Just got my mum her first smartphone. Nexus 5 (not 5X). Upgraded to latest OS - so marshmallow. Phone is like now a month old she's had it, bought new. Without WiFi on, it goes from 100% battery (freshly charged) to 88% after 2hrs. Is this normal? The phone just sat on the table for 2hrs, no usage, the screen was never turned on ...
In that situation after eliminating anything obvious I would give battery calibration a go. Nothing fancy just run it dead flat a few times and fully charge a few times.
