HP ZBook 17 G2 Mobile Workstation Manuel d'utilisateur Page 56
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Battery Check tool to test battery performance
●
Information on calibration, power management, and proper care and storage to maximize battery life
●
Information on battery types, specifications, life cycles, and capacity
To access battery information:
▲
Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions.
Using Battery Check
Help and Support provides information on the status of the battery installed in the computer.
To run Battery Check:
1. Connect the AC adapter to the computer.
NOTE: The computer must be connected to external power for Battery Check to work properly.
2. Select Start > Help and Support > Troubleshoot > Power, Thermal, and Mechanical.
3. Click the Power tab, and then click Battery Check.
Battery Check examines the battery and its cells to see if they are functioning properly, and then reports the
results of the examination.
Displaying the remaining battery charge
▲
Move the pointer over the power meter icon on the Windows desktop in the notification area, at the far
right of the taskbar.
Maximizing battery discharge time
Battery discharge time varies depending on features you use while on battery power. Maximum discharge
time gradually decreases as the battery storage capacity naturally degrades.
Tips for maximizing battery discharge time:
●
Lower the brightness on the display.
●
Remove the battery on the computer when it is not being used or charged, if the computer contains a
user-replaceable battery
●
Store the user-replaceable battery in a cool, dry location.
●
Select the Power saver setting in Power Options.
Managing low battery levels
The information in this section describes the alerts and system responses set at the factory. Some low-
battery alerts and system responses can be changed using Power Options. Preferences set using Power
Options do not affect lights.
Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low or critical battery level, the
following behavior occurs:
46 Chapter 6 Power management ENWW
- User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1Welcome 11
- Finding information 12
- ENWW Finding information 3 13
- 4 Chapter 1 Welcome ENWW 14
- ENWW Right 5 15
- Component Description 16
- TouchPad 20
- ENWW Top 11 21
- ENWW Top 13 23
- ENWW Bottom 15 25
- ENWW Rear 17 27
- 3 Connecting to a network 29
- Using the wireless button 30
- Using a WLAN 31
- Configuring a wireless router 32
- Protecting your WLAN 32
- Connecting to a WLAN 32
- Inserting and removing a SIM 33
- Connecting to a wired network 36
- Using pointing devices 38
- Scrolling 40
- 2-finger pinch zoom 40
- 2-finger click 40
- Rotating (select models only) 41
- Flicking (select models only) 42
- Using the keyboard 43
- Using keypads 44
- 5Multimedia 45
- Connecting headphones 46
- Connecting a microphone 46
- Webcam (select models only) 47
- 6 Power management 53
- Setting power options 54
- Using battery power 55
- Using Battery Check 56
- Managing low battery levels 56
- Conserving battery power 58
- Using external AC power 59
- 7 External cards and devices 63
- Configuring an ExpressCard 64
- Inserting an ExpressCard 65
- Removing an ExpressCard 66
- Using a USB device 67
- Connecting a USB device 68
- Removing a USB device 68
- Handling drives 71
- Using hard drives 71
- Removing the service door 72
- Replacing the service door 72
- Removing the hard drive 73
- Installing a hard drive 74
- Using Disk Defragmenter 75
- Using Disk Cleanup 75
- 9Security 77
- Using passwords 78
- Setting a DriveLock password 81
- Entering a DriveLock password 82
- Changing a DriveLock password 82
- Removing DriveLock protection 82
- Using antivirus software 84
- Using firewall software 84
- 10 Maintenance 87
- Cleaning your computer 89
- Cleaning procedures 90
- Updating programs and drivers 91
- 11 Backup and recovery 93
- Guidelines 94
- Backing up your information 95
- Performing a system recovery 96
- Using Computer Setup 99
- Updating the BIOS 101
- Using MultiBoot 103
- Using HP Sure Start 107
- 13 Support 109
- (3) Warranty period 110
- Component 110
- (1) Serial number 110
- (2) Product number 110
- Operating environment 112
- B Troubleshooting 115
- A disc does not play 117
- C Electrostatic discharge 119
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