Charge The Battery - Google nexus 4 Quick Start Manual

Charge the battery

Your battery will not be fully charged when you first
unpack your Nexus 4. it's a good idea to fully charge the
battery as soon as you get a chance.
if you're using the travel adapter that comes with the
phone, connect one end of the data cable to the charger
port at the bottom of the phone, and the other end to
the travel adapter. then connect the travel adapter to a
power outlet.
 Nexus 4 quick start guide