Can't turn on. Dead

Hey guys ,

I left my Moto G to be played by my sis till she said , Bro your phone suddenly turned off and I tried to turn it on. No response. I assumed that battery fully discharged. I try to plug in and press the power button and LED flash for 2 minutes and blink 2 times then fade away. I tried to disassemble the phone and check the battery. Everything seems fine. I try to plug it in and leave it for 2 hours and I touch it quite hot. I try to turn it on. Nothing seems work. Any idea? I really love my phone. Help me