HP CQ42-320CA manual Appendix B Specifications, Operating environment, Input power

Appendix B: Specifications

Operating environment

The operating environment information in the following table may be helpful if you plan to use or transport the computer in extreme environments.

Factor	Metric	U.S.
Temperature
Operating	5°C to 35°C	41°F to 95°F
Nonoperating	-20°C to 60°C	-4°F to 140°F
Relative humidity (noncondensing)
Operating	10% to 90%	10% to 90%
Nonoperating	5% to 95%	5% to 95%
Maximum altitude (unpressurized)
Operating	-15 m to 3,048 m	-50 ft to 10,000 ft
Nonoperating	-15 m to 12,192 m	-50 ft to 40,000 ft

Input power

The power information in this section may be helpful if you plan to travel internationally with the computer.

The computer operates on DC power, which can be supplied by an AC or a DC power source. The AC power must be rated 100–240 V, 50–60 Hz.

Although the computer can be powered from a standalone DC power source, it should be powered only with an AC adapter or a DC power source supplied and approved by HP for use with this computer.The computer is capable of accepting DC power within the following specifications.

Input power	Rating
Operating voltage and	18.5 V dc @ 3.5 A; 19 V dc @ 4.74; or 19.5 V dc @ 3.33 A
current

Notebook Essentials 27