Why My Battery Decrease While Charging. I do agree with some of the other reasons given in the answers. However there are other actors that come into play like your charging port and actual device software.

However I have a different point to make which may just be the reason. Its quite simple really the science behind it. As your phone is just over one year old i dont think there is any defect in the battery unless some manufacturing defect has creeped up now.
Many chargers will have a little LED light to indicate theyre receving power and some.
Table of contents 1. So in my view charger and cable is working as they should. You will then see a hyperlink that says Change advanced power settings. Table of contents 1.

