Strangest battery behavior yet

[spartanrob1]

Haven't seen this before, any thoughts? And no, i didn't plug it in.

 

[Skunkape60]

Haven't seen this before, any thoughts? And no, i didn't plug it in.

I have seen similar on my nexus s4g when it would crash and randomly reboot. I could always tell when my phone randomly restarted during the day by looking at my battery stats. Could this have happened?