Phone battery not 0%, but phone dies

A couple times in the past week, my phone has acted as if there is 0% battery, but I never received a warning about low-battery status. Why no warning? Because the battery never made it to a low-battery state.

Here's my battery usage yesterday:
[link]

Can anyone explain why a battery would just drop off a cliff like this?

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by steve.auer
29 minutes ago
Last post by laney.hermiston
3 hours ago
Last post by tobin37
1 hour ago
TytnII
Started by rahsaan.schuppe
Last post by delia.monahan
1 hour ago
Last post by gabriella47
2 hours ago
Last post by dluettgen
1 hour ago
Last post by jena35
21 minutes ago
Last post by dare.eusebio
4 hours ago
Last post by haven57
53 minutes ago
Last post by terence39
4 hours ago
Last post by rkozey
4 hours ago