Why hasn't my battery usage information accounted for all of the battery loss?

[Marines10597]

Screen - 17%
Snapchat - 8%
Android System - 4%
Android OS - 3%
Netflix - 2%
Device Idle - 2%
Cameraserver - 1%
Google App - 1%
Cell Standby - 1%
Google Play Services - 1%
Audioserver - 1%
BUT my phone is at 53% so there is something else that isn't accounted for. Any help?

 

[Rukbat]

Those numbers are percentage of the total amount used so far, not percentage of total capacity. You could turn the phone on for 5 minutes and get the same percentages - it would just be 17% of a much smaller amount of power, 8% of a much smaller amount of power, etc. There's no "unused" listing - if there was, the total would add up to very close to 100%. (Also, never let the phone discharge to less than 40% - you can kill the battery [to the point of having to replace it] very quickly that way - lithium batteries are used because they're light, not because you can discharge them all the way. See Battery University - How to Prolong Lithium-based Batteries.)