Why won't my windows phone charge when it says it is?

[Windows Central Question]

Began charging phone at 30%. Is now at 21% and I have tried two different chargers- the one it came with, and a different one. Phone says it is charging but battery continues to deplete.

 

[Guytronic]

A soft reset might fix that.
My Lumia 925 used to do this quite often.