Motorola Solutions — Battery problem

Address:

Nandurbar, Maharashtra, 425412

Hello,
I have moto g 3rd gen. phone. it's not charging while it is switched on.
Only when i switch off it, it charges very slowly.
Also i use wall mount charger still it is showing charging over usb...
Please help me...
Exactly 3 days ago it was discharged completely. even i tried to use different company charger but it was of no use..
When i charged it while it was switched off., i tried to switch on it.
After startup it was showing charging on task menu but in settings, it clearly showed not charging...