Hello. There was a similar thread yesterday, but I don't know if the Moto E had Lollipop, or if it's available.
http://forums.androidcentral.com/sho...d.php?t=536271
Hai you tried the GSam app and seen if it shows the correct percentage.
Did you mean the battery behaves normally, or it sometimes doesn't charge?
Why not turn off the battery percentage display in the Notification bar and try the GSam notification for a while.
It does seem a temporary issue.
There are others who would have better knowledge here, who may help.