Apple MacBook Pro (17-inch) - Manual (Page 31)

Chapter 2 Getting to Know Your MacBook Pro 31
To extend the reach of your power adapter, first pull the AC plug up to remove it from
the adapter. Attach the included AC power cord to the adapter, making sure it is seated
firmly. Plug the other end into a power outlet. The AC power cord provides a grounded
connection.
For best results, always use the AC power cord and connect it to a grounded power
outlet when one is available. Use only the AC power cord that came with your power
adapter. Make sure to push the power plug snugly into the power adapter port on the
computer to ensure it is engaged and power is flowing to the computer. If the cord is
plugged in properly, you’ll see a glowing indicator light on the end of the cord that
plugs into your MacBook Pro.
When disconnecting the power adapter from a power outlet or from the computer,
pull the plug, not the cord. For safety instructions about using your power adapter,
see “Setting Up Your MacBook Pro and Power Adapter” on page 105.
AC power cord AC plug