Apple MacBook (13-inch, Mid 2010) - Manual (Page 72)

72 Chapter 5 Last, but Not Least
 If you’re using the AC power cord, place the power adapter on a desk, table, or on the
floor in a well-ventilated location.
MagSafe connector
MagSafe Power Adapter
AC power cord
Disconnect the power adapter and disconnect any other cables if any of the following
conditions exist:
 You want to add memory or upgrade the hard disk drive.
 You want to clean the case (use only the recommended procedure described on
page 76).
 The power cord or plug becomes frayed or otherwise damaged.
 Your MacBook or power adapter is exposed to rain, excessive moisture, or liquid
spilled into the case.
 Your MacBook or power adapter has been dropped, the case has been damaged,
or you suspect that service or repair is required.