I've upgraded my Surface Pro to Windows 8.1 RTM release.  Now my battery drains markedly faster than before given the same normal daily office use.  If I unplug the Surface at full charge 100% and put it to sleep without touching it again, it will be fully drained to 0% in two days.  In Windows 8 this scenario would take the battery down to 90%.

If anyone has experienced this or knows a solution your help would be appreciated, thanks.

• Edited by aswoff Tuesday, September 17, 2013 2:25 AM

Please, read the thread below. There is a similar situtation like you have.

http://answers.microsoft.com/en-us/windows/forum/windowsrt_1_pr-performance/surface-rt-high-battery-drain-since-81-update/98491449-0d23-4dad-a469-c744a53a73ce

• Proposed as answer by Carey FrischMVP Tuesday, September 17, 2013 5:23 AM
• Unproposed as answer by aswoff 19 hours 31 minutes ago

I have read these already.  I have Surface Pro not RT and my Bluetooth has been enabled. Wish that was all it took to fix.

• Edited by aswoff Tuesday, September 17, 2013 4:48 PM

Hi,

I have found many similar issues after upgrading to Windows 8.1. The workaround is to enable Bluetooth. Did this fix your issue?

If not, please take time to try following suggestions. This issue could be also related to drivers, battery capability error or standby power settings:

First, please remove the driver for battery in Device manager, and restart the computer. It will be reinstalled automatically during startup.

Then, configure the power options as saving powers when standby.

Following this, run Powercfg energy command line and view the battery capability part to see if the battery is charging well.

Finally, please install all updates for your system.

Also, please upload the energy report here for my further research.

Hope these could be helpful on your issue.

Thank you for your suggestions. 

Bluetooth has been enabled and doesn't seem to make a difference.  I uninstalled the battery drivers and rebooted.  The system has all updates.  In Power Options I didn't see a specific option to change battery consumption while in standby.  I there a specific setting I should be looking for?

Here is the energy report.

Power Efficiency Diagnostics Report

Computer Name	SRFCEPHXCORP002
Scan Time	2013-09-18T15:42:41Z
Scan Duration	60 seconds
System Manufacturer	Microsoft Corporation
System Product Name	Surface with Windows 8 Pro
BIOS Date	07/04/2013
BIOS Version	1.04.0350
OS Build	9600
Platform Role	PlatformRoleSlate
Plugged In	false
Process Count	80
Thread Count	1424
Report GUID	{c3c9ad01-bfc0-47c0-af53-f7d8fb000bc9}

Analysis Results

Errors

Power Policy:802.11 Radio Power Policy is Maximum
Performance (On Battery) The current power policy for 802.11-compatible
wireless network adapters is not configured to use low-power
modes. 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 device or driver has made a request to
prevent the system from automatically entering sleep.

Driver Name

\FileSystem\rdbss

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_1E31
Host Controller Location	PCI bus 0, device 20, function 0
Device ID	USB\VID_1286&PID_2044
Port Path	3

CPU Utilization:Processor utilization is high The average processor utilization during the
trace was high. 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 (%)

4.03

Platform Power Management Capabilities:PCI Express
Active-State Power Management (ASPM) Disabled PCI Express Active-State Power Management
(ASPM) has been disabled due to a known incompatibility with the hardware in
this computer.

Warnings

Power Policy:Display timeout is long (Plugged
In) The display is configured to turn off after
longer than 10 minutes.

Timeout (seconds)

1800

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	dwm.exe
PID	1240
Average Utilization (%)	0.77
Module	Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe	0.30
\Device\HarddiskVolume4\Windows\System32\dwmcore.dll	0.14
\SystemRoot\System32\win32k.sys	0.13

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 (%)	0.38
Module	Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe	0.24
\SystemRoot\System32\drivers\dxgmms1.sys	0.05
\SystemRoot\System32\Drivers\cng.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	SetPoint.exe
PID	4876
Average Utilization (%)	0.35
Module	Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe	0.14
\Device\HarddiskVolume4\Windows\System32\d3d9.dll	0.05
\SystemRoot\System32\drivers\dxgkrnl.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	iexplore.exe
PID	3660
Average Utilization (%)	0.33
Module	Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe	0.14
\Device\HarddiskVolume4\Windows\SysWOW64\jscript9.dll	0.03
\Device\HarddiskVolume4\Program Files (x86)\Common Files\Sophos\Web Intelligence\swi_filter.dll	0.03

Information

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)

156258

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	1F11LGC_LGCX863568
Manufacturer	LGC_LGC
Serial Number	1F11
Chemistry	LION
Long Term	1
Sealed	0
Cycle Count	111
Design Capacity	42002
Last Full Charge	40515

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	false
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)	1701
Maximum Performance Percentage	100
Lowest Performance Percentage	45
Lowest Throttle Percentage	45
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)	1701
Maximum Performance Percentage	100
Lowest Performance Percentage	45
Lowest Throttle Percentage	45
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)	1701
Maximum Performance Percentage	100
Lowest Performance Percentage	45
Lowest Throttle Percentage	45
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)	1701
Maximum Performance Percentage	100
Lowest Performance Percentage	45
Lowest Throttle Percentage	45
Performance Controls Type	ACPI Performance (P) / Throttle (T) States

Device Drivers:Analysis Success Analysis was successful. No energy efficiency
problems were found. No information was
returned.

The problem has been resolved with "System Firmware Update 10/5/2013" installed through Windows Update.  The battery usage is back to pre 8.1 behavior.  Would have been nice to know Microsoft was working on this, but glad they fixed it relatively quickly.

• Marked as answer by aswoff 19 hours 31 minutes ago