Chosen Solution
While charging not matter using any charger, the ZTE phone shows decreasing battery percentage until it is off due to no battery. Fyi, my turnaround solution is swapping battery from ZTE which is fully charged and very annoyingly this happens few times a day.
Had the same problem. Turned out my charger"cord" was kinked at one or both ends - and it was NOT noticable at all. Keep in mind it was ONLY the charger"cord"( NOT the USB/Plug in square piece that you connect the cord into and then plug into wall!) Confirmed it at TMobile store, and saved money by not having to buy the USB/PLUG IN Piece, just a new cord. $30 total to fix it! Hope this is helpful.
