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14 Posts

12-30-2012

Adelaide, Australia

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  • Location: Adelaide, Australia
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  • Message 11 of 18

Re: UPDATE Re: X220 Battery life - 1/2 what it was on Win7

2013-01-24, 9:04 AM

wrote:

I get between 8 and 10 hours doing work or surfing internet on medium to high brightness using a 9 cell battery (which is almost 2 years old)


Same here, getting about the same that I was getting under Windows 7. There has been no fundamental change from upgrading.

0 person found this solution to be helpful.

This helped me too

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9 Posts

11-22-2012

United Kingdom

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  • Message 12 of 18

Re: UPDATE Re: X220 Battery life - 1/2 what it was on Win7

2013-01-24, 12:53 PM

Reinstall it is then. Oh what fun!

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125 Posts

01-26-2011

Fort Stewart, GA

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  • Location: Fort Stewart, GA
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  • Message 13 of 18

Re: UPDATE Re: X220 Battery life - 1/2 what it was on Win7

2013-01-25, 2:01 AM

One other option in Power Manager is to "reset" the battery (or some such phrase) under options where the program will drain your battery to no charge and then charge it to 100%. I did not install Power Manager in W8 but used it with W7.

 

Give that a try. 

 

Like an earlier poster, Power Manager would sometimes show my battery at 99% or 98% as fully charged.  When I "Reset" the battery it will always show 100%.  Draining the battery on occasion and recharging is recommended maintenance anyway.

 

I've noticed that Power Manager will sometimes show less than a 100% charge where the windows version shows a 100% charge.  I have a W8 installed now and observed no power issues upon upgrading.

 

Good luck!

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47 Posts

12-09-2011

N.Wales. UK

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  • Message 14 of 18

Re: X220 Battery life - 1/2 what it was on Win7

2013-02-07, 21:16 PM

Turn off Bluetoooth.  to do this download the Broadcom Driver from Broadcom not Lenovo Under wireless settings you will then find a new switch for Bluetooth. Off it doubles battery life. on my 520

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2 Posts

02-08-2013

United States

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  • Message 15 of 18

Re: X220 Battery life - 1/2 what it was on Win7

2013-02-08, 20:12 PM

I am seeing the same problem with 1/2 battery life in Windows 8.  I did a fresh Windows 8 install, not a upgrade. Before going to windows 8, I could get 7/8 hours easily.  Now I struggle to get past 5 hours.  

 

Flaca, did the resintall help?

 

Going to try to turn off bluetooth to see if that helps.   Too bad I use a bluetooth mouse most of the time... I could get the aforementioned 8 hours in Win 7 using bluetooth continiously.

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9 Posts

11-22-2012

United Kingdom

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  • Message 16 of 18

Re: X220 Battery life - 1/2 what it was on Win7

2013-02-11, 14:27 PM

Glad it;'s not just me!

 

Turning Bluetooth off helps a bit, I can just about get over 5 hours but certainly not the 8 hours that I could also get routinely on Win 7.

 

Resetting battery gauge does nothing

 

Oddly, reinstalling did get me an extra 1 hour!

 

I have Power Manager installed in Win 7 compatibility mode. It reports power usage between 8 and 10 watts on max battery life mode. I don't have a comparison with what I was using on Win 7.

 

Any ideas?

 

Cheers

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2 Posts

02-08-2013

United States

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  • Message 17 of 18

Re: X220 Battery life - 1/2 what it was on Win7

2013-02-24, 6:21 AM

You're in a better position than me, in Max battery life mode, I read between 11-13 watts, never below 10.  Frustrating, as I see posts boasting that they have sometihng like 4.5 watts idle!  This is with minimum brightness (I have an IPS, i5-2520).  I just did a fresh reinstall of windows 8 on a friends computer and she was idling at 8 watts at default power source optimized plan.  However, she doesn't have bluetooth, or the fingerprint reader, has the TN screen, and the base wifi card (1x1).  She does have the top level i7 processor though.

 

 

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19 Posts

10-20-2011

Minnesota

57 Signins

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  • Registered: ‎10-20-2011
  • Location: Minnesota
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  • Message 18 of 18

Re: X220 Battery life - 1/2 what it was on Win7

2014-07-13, 18:03 PM

Hi All, 

 

The below worked for me:

 

I was struggling with this one for awhile. Basically 16W idle with chrome open. My system specs were pretty maxed out:

 

Windows 8.1

i5 2520

16GB ram ddr 1333 1.5v

9cell

Crucial M4 512GB 2.5"

Samsung 840EVO 500GB mSATA

IPS display

 

The solution was as others have said is to install the power manager gui in windows 7 compatablity mode. The power manager driver version is 1.67.4.5 dated 12/17/2013 according to device manager (This is what win8.1 automatically installed). 

 

By doing this, with 50% brightness level, I typcially idle at around 10.5 to 11.5 watts. I think this is pretty good considering i've got 2 SSD's, 16gb ram, and the ips display.

 

4.5watts idle is insane and I have no idea how that guy did it (i saw the thread). I'd of course like to go lower in power consumption, but this is low enough to get me to stop messing around with my computer and focus on actually doing work.

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