To test the AC adapter:
1.
Shut down the computer.
2.
Remove the battery from the computer.
3.
Connect the AC adapter to the computer, and then plug it into an AC outlet.
4.
Turn on the computer.
●
If the power lights turn
on
, the AC adapter is functioning properly.
●
If the power lights remain
off
, the AC adapter is not functioning and should be replaced.
Contact technical support for information on obtaining a replacement AC power adapter.
Using external AC power
43
Summary of Contents for ProBook 4445s
Page 1: ...HP Notebook User Guide ...
Page 4: ...iv Safety warning notice ...
Page 10: ...x ...
Page 100: ......