Home » Toshiba Manuals » Hard Drives » Toshiba Z20t-B » Manual Viewer

Toshiba Z20t-B Portege Z20-B Series Tablet w/Keyboard dock Series Windows 10 U - Page 90

Charging the RTC battery, Determining remaining battery power

Add to My Manuals
Save this manual to your list of manuals

Page 90 highlights

90 Mobile Computing Monitoring battery power Charging the RTC battery Your device may have an internal real-time clock (RTC) battery. The RTC battery powers the System Time Clock and BIOS memory used to store your device's configuration settings. When fully charged, it maintains this information for up to a month when the device is powered off. The RTC battery may have become completely discharged while your device was shipped, resulting in a CMOS error message during startup. The error message may vary by device model. NOTE Depending on your system, the RTC battery may only charge while the device is turned on. To recharge the RTC battery, plug the device into a live electrical outlet and leave the device powered on for 24 hours. NOTE It is seldom necessary to charge the RTC battery because it charges while the device is on. If the RTC battery is low, the real-time clock and calendar may display the incorrect time and date or stop working. When the RTC battery is completely discharged, a warning prompts you to reset the real-time clock. The device can be used while the RTC battery is being charged, although the charging status of the RTC battery cannot be monitored. Determining remaining battery power NOTE Wait a few moments after turning on the device before trying to monitor the remaining battery power. The device needs this time to check the battery's remaining capacity and perform its calculations. Touch the Power icon in the notification area, see "Finding your way around the desktop" on page 99 for more information on the notification area. A pop-up message displays the remaining battery power as a percentage.

Section	Page
Portégé® Z20-B Series User’s Guide	1
Contents	19
Introduction	26
This guide	28
Safety icons	29
Other icons used	29
Your device’s features and specifications	30
Documentation	30
Service options	30
Precautions	31
File management tips	32
Chapter 1: Getting Started	33
Selecting a place to work	33
Features and components	34
Front	34
Back	35
Left side	36
Right side	37
Bottom	38
Underside	39
Pen	39
Setting up a work environment	40
Keeping yourself comfortable	40
Device user comfort recommendations	40
Good Working Posture	40
Using the notebook with an external keyboard, mouse or monitor	42
Typing style	43
Taking breaks and varying tasks	43
Mobile computing tips	44
Transporting the notebook	44
Seeking additional help	44
Check list	45
Precautions	45
Setting up your device	47
Connecting to a power source	48
Charging the main battery	49
Using the device for the first time	50
Initial setup	50
Using the Start menu	50
Registering your device with Toshiba	51
To Shut down your device	52
To Restart your device	53
To place your device in Sleep mode	53
Adding optional external devices	54
Recovering the Internal Storage Drive	54
Creating a recovery drive using Toshiba Recovery Media Creator	55
Restoring from recovery media created by Toshiba Recovery Media Creator	57
Recovering from the Internal Storage Drive	58
Reset your PC	59
Installing drivers and applications	61
Using the TOSHIBA Dual Pointing Device	62
Using the touchpad	63
Adjusting touchpad settings	66
Disabling or enabling the touchpad	67
Connecting an external device	67
Using external display devices	68
Selecting video cables	68
Connecting an HDMI-compatible television or display device	69
Connecting an external monitor or projector	69
Directing the display output when your device is attached to the keyboard dock	69
Adjusting the quality of the external display	70
Customizing your device’s settings	71
Caring for your device	71
Cleaning the device	71
Moving the device	71
Using a device lock	72
Chapter 2: Learning the Basics	74
Computing tips	74
Attaching and detaching the keyboard dock	76
Attaching the tablet and keyboard dock	76
Detaching the tablet and keyboard dock	77
Using the keyboard	78
Function keys	78
Special Windows keys	78
Overlay keys	79
Backlit keyboard dock	80
Touch screen	80
Touch screen navigation	80
Mouse properties	82
Starting an app	82
Saving your work	83
Backing up your work	83
Toshiba’s online resources	84
Chapter 3: Mobile Computing	85
Toshiba’s energy-saver design	85
Running the device on battery power	85
Battery Notice	86
Power management	87
Charging the main battery	87
Monitoring battery power	89
Charging the RTC battery	90
Determining remaining battery power	90
What to do when the main battery runs low	91
Setting battery notifications	91
Conserving battery power	92
Power Plans	93
Using the eco power plan	94
Changing the main battery	94
Taking care of your battery	95
Safety precautions	95
Maintaining your battery	96
Disposing of your device	96
Traveling tips	96
Chapter 4: Exploring Your Device’s Features	98
Exploring the desktop	98
Finding your way around the desktop	99
Windows Store	103
Setting up for communications	103
Connecting your device to a network	105
Exploring audio features	105
Recording sounds	105
Using external speakers or headphones	106
Using the Web Camera	107
Using the microSD Card slot	108
Inserting memory media	108
Removing memory media	109
Chapter 5: Utilities and Applications	110
eco Utility	111
Password Utility	112
Using a supervisor password	112
Using a user password	114
Deleting a user password	116
System Settings	117
TOSHIBA Recovery Media Creator	119
Service Station	119
TOSHIBA Application Installer	120
PC Health Monitor	121
Chapter 6: If Something Goes Wrong	122
Problems that are easy to fix	122
Problems when you turn on the device	123
The Windows operating system is not working	125
Using Startup options to fix problems	125
Internet problems	127
Power and the battery	128
Keyboard help	129
Perform a complete power cycle	129
Reset the Keyboard dock	130
Uninstall the keyboard driver	130
Perform a system restore	131
Clean the keyboard	131
Touchpad help	131
Disable then enable the touchpad	131
Install an external mouse	132
Perform a complete power cycle	132
Uninstall the touchpad driver	132
Download the latest touchpad driver	133
Perform a system restore	134
Adjust the touchpad properties	134
Display problems	134
Disk or storage drive problems	136
Error-checking	136
Web Camera help	138
Testing your internal Web Camera	138
Uninstall the Web Camera driver	138
Perform a system restore	139
Check for problems with third party applications	140
System Recovery	140
Sound help	140
Use the Sound troubleshooter	140
Check and set default speakers	141
Uninstall the audio driver	142
Download the latest sound driver	143
Perform a system restore	143
Printer problems	144
Wireless networking problems	145
Connecting to the Internet	146
Using a wireless connection	147
Troubleshooting an Internet connection – Verify network status	147
Troubleshooting an Internet connection – Verify hardware	148
Uninstall the network adapter driver	148
Troubleshooting an Internet connection – How to verify TCP/IP	149
Downloading drivers and updates	151
Using Toshiba Service Station	151
Manually download and install drivers and updates	151
How to determine the correct drivers to download	152
Develop good computing habits	152
Data and system configuration backup in the Windows operating system	153
Additional help	157
If you need further assistance	157
Contacting Toshiba	158
Other Toshiba Internet Web sites	158
Toshiba’s worldwide offices	158
Appendix A: TOSHIBA Function Keys	160
Functions	160
Volume Mute	161
Lock (Instant security)	161
Power plan	161
Sleep mode	161
Hibernation mode	162
Output (Display switch)	162
Display brightness	163
Disabling or enabling wireless devices	163
Disabling or enabling the touchpad	163
Disabling or enabling the cursor control overlay	164
Disabling or enabling the numeric overlay	164
Disabling or enabling the scroll lock	164
Keyboard dock eject	164
Keyboard dock backlight	164
Zoom In/Out	164
Volume control	165
Zoom (Display resolution)	165
Cortana	165
Appendix B: Power Cord/Cable Connectors	166
Glossary	167
A	169
B	170
C	171
D	172
E	173
F	174
G	175
H	175
I	176
K	176
L	176
M	177
N	177
O	178
P	178
R	179
S	180
T	181
U	181
W	181