Nexus 5 battery dead due to automatic restart problem

[AC Question]

fast few days nexus 5 is automatically restart the system without manual interaction.
yesterday system is cont. restarts so nexus 5 battery is dead. i have put the charge, system is automatically restarting and not able to stop restarting.

some one help me how to restore the battery again and how to automatic restart.

 

[belodion]

Welcome.

It may be a faulty power switch, under the power button. Make sure also that the button is not stuck in the pressed position.