Apple Macbook 13inch Users Guide

101
AppendixA
 
ASpecifications
You can use System Profiler to find out detailed 
information about your MacBook.
You can find out the amount of built-in memory, hard disk size, devices connected, the 
product serial number, and more. To access the information in System Profiler, choose 
Apple () > About This Mac from the menu bar and then click More Info, or open 
System Profiler, located in /Applications/Utilities/.
Click the triangles in the window 
to show and hide information in 
the different...

102 Appendix A   Specifications
 
Operating Environment
ÂOperating temperature:  50° F to 95° F (10° C to 35° C)
ÂAltitude:  3048 m (10,000 ft.) maximum
ÂRelative humidity:  0% to 90% noncondensing
Power Adapter
ÂInput:  AC 100–240 volts ( V ), 50/60 hertz (Hz)
ÂOutput:  DC 16.5 V @ 3.65 A
Battery
ÂOutput:  DC 10.8 V 
ÂCapacity:  55 Wh 
More information is available on the Apple website at www.apple.com/macbook and 
www.apple.com/support. 

103
AppendixB
 
BSafety, Use, and 
Care Information
Read this important MacBook safety and 
maintenance information.
Apple products are designed and evaluated to the latest standards for safety of 
information technology equipment. However, to ensure safe usage, it is important that 
safety instructions marked on the product and in the documentation are followed.
Understanding General Safety Instructions
Read and follow all instructions marked on the product and in this manual before 
operating your...

104 Appendix B   Safety, Use, and Care Information
 
ÂFor your own safety and that of your equipment, always take the following 
precautions. Disconnect the power plug (by pulling the plug, not the cord), remove 
the battery, and disconnect any other cables if any of the following conditions exists:
ÂYou want to install memory.
ÂYou want to remove any parts.
ÂThe power cord or plug becomes frayed or otherwise damaged.
ÂYou spill something into the case.
ÂYour computer is exposed to rain or any other...

Appendix B   Safety, Use, and Care Information105
 
Setting Up Your MacBook and Power Adapter
Ensure the AC plug or AC power cord is fully inserted into the power adapter before 
plugging the adapter into a power outlet. For best results, connect the adapter using 
the AC power cord and use a grounded power outlet.
Use only the power adapter that came with your MacBook. Adapters for other 
electronic devices (including MacBook Pro models and other portable computers) 
might look similar, but they can...

106 Appendix B   Safety, Use, and Care Information
 
Using Your MacBook
When you’re using your MacBook or charging the battery, it is normal for the bottom of 
the case to get warm. For prolonged use, place your MacBook on a flat, stable surface. 
Do not leave the bottom of your MacBook in contact with your lap or any surface of 
your body for extended periods. Prolonged contact with your body could cause 
discomfort and potentially a burn.
The bottom of the MacBook case functions as a cooling surface...

Appendix B   Safety, Use, and Care Information107
 
Storing Your MacBook
If you are going to store your MacBook for an extended period of time, keep it in a cool 
location (ideally, 71° F or 22° C) and do one of the following to preserve your MacBook 
battery life:
ÂDischarge the battery 50 percent before storing your MacBook.
ÂWhen storing your computer for longer than five months, discharge the battery to 
approximately 50 percent and then remove it from the MacBook. If you are storing 
your computer...

108 Appendix B   Safety, Use, and Care Information
 
Avoiding Hearing Damage
Laser Information
Do not attempt to disassemble the cabinet containing the laser. The laser beam used in 
this product is harmful to the eyes. The use of optical instruments, such as magnifying 
lenses, with this product increases the potential hazard to your eyes. For your safety, 
have this equipment serviced only by an Apple-authorized service provider.  Warning:  Permanent hearing loss may occur if earbuds or headphones are...

Appendix B   Safety, Use, and Care Information109
 
Because of the optical disc drive in your computer, your computer is a Class 1 
laser product. The Class 1 label, located in a user-accessible area, indicates that the 
drive meets minimum safety requirements. A service warning label is located in a 
service-accessible area. The labels on your product may differ slightly from the ones 
shown here.
 
High-Risk Activities Warning
This computer system is not intended for use in the operation of nuclear...

110 Appendix B   Safety, Use, and Care Information
 
Understanding Ergonomics
Here are some tips for setting up a healthy work environment.
Keyboard and Trackpad
When you use the keyboard and trackpad, your shoulders should be relaxed. Your 
upper arm and forearm should form an angle that is slightly greater than a right angle, 
with your wrist and hand in roughly a straight line.
Use a light touch when typing or using the trackpad and keep your hands and fingers 
relaxed. Avoid rolling your thumbs under...