Windows 8 Eats battery compared to Windows 7

Question

Hi , 
I used Windows 7 for more than a year , it gave me about 2:30 Min in my laptop.
When i installed windows 8 , after 2 months when i try to plug out my laptop from power the battery gets low after 5 min , i though battery need to be replaced but when i reinstalled windows 8 it give me only 1:45Min battery time.
Im sure my battery is fine , how i can set the battery of windows 8 , usage to same like windows 7
Need Help
Thanks
Shan Khan
Thank You , Shan Ali Khan

Answer 1

Power Efficiency Diagnostics Report
Computer Name
VIR
Scan Time
2014-08-16T07:09:31Z
Scan Duration
60 seconds
System Manufacturer
Dell Inc.
System Product Name
Inspiron N5050
BIOS Date
08/03/2012
BIOS Version
A05
OS Build
9600
Platform Role
PlatformRoleMobile
Plugged In
false
Process Count
39
Thread Count
575
Report GUID
{94a9e996-e797-469a-8e18-32d737bd3c12}
Analysis Results
Errors
Power Policy:Sleep timeout is disabled (On Battery)
The computer is not configured to automatically sleep after a period of inactivity.
Power Policy:Sleep timeout is disabled (Plugged In)
The computer is not configured to automatically sleep after a period of inactivity.
System Availability Requests:System Required Request
The service has made a request to prevent the system from automatically entering sleep.
Requesting Service
RasMan
System Availability Requests:System Required Request
A kernel component has made a request to prevent the system from automatically entering sleep.
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name
USB Root Hub
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8086&PID_1C26
Port Path
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name
USB Mass Storage Device
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_0BDA&PID_0138
Port Path
1,6
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name
Generic USB Hub
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8087&PID_0024
Port Path
1
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_12D1&PID_140C
Port Path
1,2
Battery:Last Full Charge (%)
The battery stored less than 40% of the Designed Capacity the last time the battery was fully charged.
Battery ID
7498SMPDELL 8NH5517
Design Capacity
48840
Last Full Charge
12044
Last Full Charge (%)
24
Device Drivers:
Devices with missing or misconfigured drivers can increase power consumption.
Device Name
Disk drive
Device ID
USBSTOR\DISK&VEN_GENERIC-&PROD_MULTI-CARD&REV_1.00\20090516388200000&0
Device Status
0x1802400
Device Problem Code
0x16
Warnings
Platform Timer Resolution:Platform Timer Resolution
The default platform timer resolution is 15.6ms (15625000ns) and should be used whenever the system is idle. If the timer resolution is increased, processor power management technologies may not be effective. The timer resolution may be increased due to
multimedia playback or graphical animations.
Current Timer Resolution (100ns units)
10006
Maximum Timer Period (100ns units)
156250
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
2068
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
3644
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
3372
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
CPU Utilization:Processor utilization is moderate
The average processor utilization during the trace was moderate. The system will consume less power when the average processor utilization is very low. Review processor utilization for individual processes to determine which applications and services contribute
the most to total processor utilization.
Average Utilization (%)
3.70
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
3644
Average Utilization (%)
0.64
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome_child.dll
0.45
\SystemRoot\system32\ntoskrnl.exe
0.07
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
0.04
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
2180
Average Utilization (%)
0.41
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome.dll
0.19
\SystemRoot\system32\ntoskrnl.exe
0.11
\SystemRoot\System32\win32k.sys
0.04
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
System
PID
4
Average Utilization (%)
0.41
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.32
\SystemRoot\system32\DRIVERS\ewusbnet.sys
0.02
\SystemRoot\system32\drivers\ndis.sys
0.01
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
1068
Average Utilization (%)
0.22
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome_child.dll
0.21
\SystemRoot\system32\ntoskrnl.exe
0.00
\SystemRoot\System32\drivers\i8042prt.sys
0.00
Information
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
2068
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome_child.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
3644
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome_child.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
3372
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Windows\System32\d3d9.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\libglesv2.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\libegl.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\37.0.2031.2\chrome_child.dll
Power Policy:Active Power Plan
The current power plan in use
Plan Name
OEM Balanced
Plan GUID
{381b4222-f694-41f0-9685-ff5bb260df2e}
Power Policy:Power Plan Personality (On Battery)
The personality of the current power plan when the system is on battery power.
Personality
Balanced
Power Policy:Video Quality (On Battery)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Balance Video Quality and Power Savings
Power Policy:Power Plan Personality (Plugged In)
The personality of the current power plan when the system is plugged in.
Personality
Balanced
Power Policy:802.11 Radio Power Policy is Maximum Performance (Plugged In)
The current power policy for 802.11-compatible wireless network adapters is not configured to use low-power modes.
Power Policy:Video quality (Plugged In)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Optimize for Video Quality
Battery:Battery Information
Battery ID
7498SMPDELL 8NH5517
Manufacturer
SMP
Serial Number
7498
Chemistry
LION
Long Term
1
Sealed
0
Design Capacity
48840
Last Full Charge
12044
Platform Power Management Capabilities:Supported Sleep States
Sleep states allow the computer to enter low-power modes after a period of inactivity. The S3 sleep state is the default sleep state for Windows platforms. The S3 sleep state consumes only enough power to preserve memory contents and allow the computer
to resume working quickly. Very few platforms support the S1 or S2 Sleep states.
S1 Sleep Supported
true
S2 Sleep Supported
false
S3 Sleep Supported
true
S4 Sleep Supported
true
Platform Power Management Capabilities:Connected Standby Support
Connected standby allows the computer to enter a low-power mode in which it is always on and connected. If supported, connected standby is used instead of system sleep states.
Connected Standby Supported
false
Platform Power Management Capabilities:Adaptive Display Brightness is supported.
This computer enables Windows to automatically control the brightness of the integrated display.
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
0
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
2200
Maximum Performance Percentage
100
Lowest Performance Percentage
36
Lowest Throttle Percentage
36
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
1
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
2200
Maximum Performance Percentage
100
Lowest Performance Percentage
36
Lowest Throttle Percentage
36
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
2
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
2200
Maximum Performance Percentage
100
Lowest Performance Percentage
36
Lowest Throttle Percentage
36
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
3
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
2200
Maximum Performance Percentage
100
Lowest Performance Percentage
36
Lowest Throttle Percentage
36
Performance Controls Type
ACPI Performance (P) / Throttle (T) States