How do you mean that an update won't fix it? Isn't it clearly a Yosemite issue? Im doing or running nothing different from before!
Btw, here is a copy of EtreCheck that i just did:
Problem description:
Battery drain down to below 50% since upgrade
EtreCheck version: 2.0.11 (98)
Report generated 12 November 2014 11:10:14 am GMT
Hardware Information: ℹ️
MacBook Pro (Retina, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro10,1
1 2.3 GHz Intel Core i7 CPU: 4-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000 -
Color LCD spdisplays_2880x1800Retina
NVIDIA GeForce GT 650M - VRAM: 1024 MB
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: one day 1:26:8
Disk Information: ℹ️
APPLE SSD SM256E disk0 : (251 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 249.77 GB (15.87 GB free) (Low!)
Core Storage: disk0s2 250.14 GB Online
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/InsomniaX.app
[loaded] org.binaervarianz.driver.insomnia (1.0.0d1) Support
[not loaded] org.binaervarianz.iokit.insomnia (1.0.0d1) Support
/Applications/Plex.app
[not loaded] com.Cycling74.driver.Soundflower (1.5.1) Support
/Applications/SyncMate.app
[not loaded] com.eltima.SyncMate.kext (0.2.5b15) Support
/Applications/Toast 10 Titanium/Toast Titanium.app
[not loaded] com.roxio.BluRaySupport (1.1.6) Support
[not loaded] com.roxio.TDIXController (2.0) Support
/Applications/Utilities/DiskWarrior.app
[not loaded] com.alsoft.Preview (4.3) Support
/Applications/VMware Fusion.app
[not loaded] com.vmware.kext.vmci (90.1.1) Support
[not loaded] com.vmware.kext.vmioplug (0073.02.98) Support
[not loaded] com.vmware.kext.vmnet (0073.02.98) Support
[not loaded] com.vmware.kext.vmx86 (0073.02.98) Support
[not loaded] com.vmware.kext.vsockets (90.1.5) Support
/Library/Extensions
[loaded] org.virtualbox.kext.VBoxDrv (4.1.6) Support
[not loaded] org.virtualbox.kext.VBoxNetAdp (4.1.6) Support
[not loaded] org.virtualbox.kext.VBoxNetFlt (4.1.6) Support
[loaded] org.virtualbox.kext.VBoxUSB (4.1.6) Support
/System/Library/Extensions
[not loaded] com.Belcarra.iokit.USBLAN_netpart (2.0.2) Support
[not loaded] com.Belcarra.iokit.USBLAN_usbpart (2.0.2) Support
[not loaded] com.RemoteControl.USBLAN.usbpart (2.0.6) Support
[loaded] com.logmein.driver.LogMeInSoundDriver (4.1.46f67) Support
[not loaded] com.makemkv.kext.daspi (1) Support
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) Support
/System/Library/Extensions/Belcarra.USBLAN_netpart.kext/Contents/PlugIns
[not loaded] com.belcarra.iokit.netpart.panther (1.6.1) Support
/System/Library/Extensions/Belcarra.USBLAN_usbpart.kext/Contents/PlugIns
[not loaded] com.belcarra.iokit.usbpart.panther (1.6.1) Support
/System/Library/Extensions/RemoteControl.USBLAN_usbpart.kext/Contents/PlugIns
[not loaded] com.RemoteControl.USBLAN.panther (1.6.1) Support
Startup Items: ℹ️
VirtualBox: Path: /Library/StartupItems/VirtualBox
Startup items are obsolete and will not work in future versions of OS X
Problem System Launch Agents: ℹ️
[failed] com.apple.AirPlayUIAgent.plist
[failed] com.apple.bird.plist
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.cmfsyncagent.plist
[failed] com.apple.coreservices.appleid.authentication.plist
[failed] com.apple.EscrowSecurityAlert.plist
[failed] com.apple.icloud.fmfd.plist
[failed] com.apple.Maps.pushdaemon.plist
[failed] com.apple.pluginkit.pkd.plist
[failed] com.apple.recentsd.plist
[failed] com.apple.sbd.plist
[failed] com.apple.security.cloudkeychainproxy.plist
[failed] com.apple.spindump_agent.plist
[failed] com.apple.telephonyutilities.callservicesd.plist
[failed] com.apple.xpc.loginitemregisterd.plist
[loaded] com.paragon.NTFS.trial.plist Support
[loaded] com.paragon.NTFS.upd.plist Support
Problem System Launch Daemons: ℹ️
[failed] com.apple.AssetCacheLocatorService.plist
[failed] com.apple.ctkd.plist
[failed] com.apple.GSSCred.plist
[failed] com.apple.icloud.findmydeviced.plist
[failed] com.apple.ifdreader.plist
[failed] com.apple.nehelper.plist
[failed] com.apple.periodic-daily.plist
[failed] com.apple.softwareupdate_download_service.plist
[failed] com.apple.systemstats.analysis.plist
[failed] com.apple.tccd.system.plist
[failed] com.apple.wdhelper.plist
[failed] com.apple.xpc.smd.plist
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[loaded] com.divx.dms.agent.plist Support
[loaded] com.divx.update.agent.plist Support
[loaded] com.google.keystone.agent.plist Support
[running] com.kodak.BonjourAgent.plist Support
[invalid?] com.logmein.LMILaunchAgentFixer.plist Support
[not loaded] com.logmein.logmeingui.plist Support
[not loaded] com.logmein.logmeinguiagent.plist Support
[not loaded] com.logmein.logmeinguiagentatlogin.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
[loaded] com.realvnc.vncserver.peruser.plist Support
[not loaded] com.realvnc.vncserver.prelogin.plist Support
[invalid?] com.trusteer.rapport.rapportd.plist Support
[running] com.tvmobili.artwork.plist Support
[loaded] org.macosforge.xquartz.startx.plist Support
[running] syncmateStarter.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[running] com.ciphergraph.ciphergraphhelper.plist Support
[running] com.crashplan.engine.plist Support
[loaded] com.google.keystone.daemon.plist Support
[not loaded] com.logmein.logmeinserver.plist Support
[invalid?] com.logmein.raupdate.plist Support
[loaded] com.macpaw.CleanMyMac2.Agent.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[loaded] com.realvnc.vncserver.plist Support
[running] com.trusteer.rooks.rooksd.plist Support
[running] com.tvmobili.tvmobilisvcd.plist Support
[loaded] net.sourceforge.MonolingualHelper.plist Support
[loaded] org.macosforge.xquartz.privileged_startx.plist Support
[loaded] YandexDiskHelper.plist Support
[loaded] YandexDiskInstaller.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.kodak.KODAK AiO Annual Opt.plist Support
[loaded] com.kodak.KODAK AiO Firmware Updater.plist Support
[loaded] com.kodak.KODAK AiO Software Updater.plist Support
[running] com.kodak.StatisticCollection.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist Support
[running] com.picturelife.sync.plist Support
[running] com.plexapp.mediaserver.plist Support
[not loaded] com.synology.CloudStation.plist Support
[loaded] com.valvesoftware.steamclean.plist Support
[not loaded] org.virtualbox.vboxwebsrv.plist Support
[running] org.xbmc.helper.plist Support
User Login Items: ℹ️
Air Video Server Application (/Applications/Air Video Server.app)
Twitter ApplicationHidden (/Applications/Twitter.app)
Caffeine Application (/Applications/Caffeine.app)
SleepLess Application (/Applications/SleepLess.app)
MyTomTomSA Application (/Applications/MyTomTomSA.app)
VMware Fusion Helper Application (/Applications/VMware Fusion.app/Contents/Library/VMware Fusion Helper.app)
Connect360Helper Application (/Users/[redacted]/Library/PreferencePanes/Connect360.prefPane/Contents/Resourc es/Connect360Helper.app)
TomTomHOMERunner Application (/Users/[redacted]/Library/Application Support/TomTom HOME/TomTomHOMERunner.app)
Android File Transfer Agent Application (/Users/[redacted]/Library/Application Support/Google/Android File Transfer/Android File Transfer Agent.app)
AppTrap Application (/Users/[redacted]/Library/PreferencePanes/AppTrap.prefPane/Contents/Resources/ AppTrap.app)
Dropbox ApplicationHidden (/Applications/Dropbox.app)
Knock ApplicationHidden (/Applications/Knock.app)
Google+ Auto Backup ApplicationHidden (/Applications/Google+ Auto Backup.app)
SpeechSynthesisServer Application (/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)
Internet Plug-ins: ℹ️
Google Earth Web Plug-in: Version: 6.0 Support
Default Browser: Version: 600 - SDK 10.10
OfficeLiveBrowserPlugin: Version: 12.2.0 Support
OVSHelper: Version: 1.1 Support
Unity Web Player: Version: UnityPlayer version 4.3.1f1 - SDK 10.6 Support
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support
DivX Web Player: Version: 3.2.3.1164 - SDK 10.6 Support
LogMeIn: Version: 1.0.935 - SDK 10.7 Support
Flash Player: Version: 15.0.0.223 - SDK 10.6 Support
LogMeInSafari32: Version: 1.0.935 - SDK 10.7 Support
iPhotoPhotocast: Version: 7.0 - SDK 10.7
OnLiveGameClientDetector: Version: OnLiveGameClientDetector 1.0.0 Support
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support
JavaAppletPlugin: Version: Java 7 Update 71 Check version
Safari Extensions: ℹ️
QPush - Push Text and Links to iPhone
Ultimate Status Bar
Add To Amazon Wish List
SimilarWeb
Facebook Photo Zoom
CouchPotato-1
Download Shuttle
AutoPagerize
1Password
AdBlock
Synology Download Station for Safari
FlashToHTML5-1
Awesome Screenshot
Twitter for Safari
Save to Pocket
clea.nr Videos
YoutubeWide
2Prowl
3rd Party Preference Panes: ℹ️
AppTrap Support
Connect360 Support
Flash Player Support
Java Support
NTFS-3G Support
Paragon NTFS for Mac ® OS X Support
Perian Support
Trusteer Endpoint Protection Support
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 249.77 GB Disk used: 233.90 GB
Destinations:
Time Machine Backup [Network]
Total size: 9.90 TB
Total number of backups: 62
Oldest backup: 2013-10-29 7:15:37 am +0000
Last backup: 2014-11-09 7:29:51 pm +0000
Size of backup disk: Excellent
Backup size 9.90 TB > (Disk size 249.77 GB X 3)
Top Processes by CPU: ℹ️
13% tvmobilisvcd
4% iOS Simulator
3% Dropbox
2% WindowServer
1% backboardd
Top Processes by Memory: ℹ️
481 MB Safari
163 MB Xcode
86 MB Finder
77 MB Skype
77 MB WindowServer
Virtual Memory Information: ℹ️
71 MB Free RAM
2.22 GB Active RAM
2.17 GB Inactive RAM
1.48 GB Wired RAM
28.94 GB Page-ins
437 MB Page-outs