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Technical News & Discussion => Windows News & Discussion => Topic started by: Noreen on Aug 25, 2009, 11:00:16

Title: Windows 7 slashes netbook battery life by a third
Post by: Noreen on Aug 25, 2009, 11:00:16
QuoteNetbooks running Microsoft's new operating system Windows 7 will see their battery life slashed by a third, says a number of users.

Laptop magazine revealed that during a recent test, a Toshiba netbook lost 2.5 hours of battery life when running Windows 7 instead of XP, or about 30 percent (6:53 for Windows 7, versus 9:24 for XP).

Tom's Hardware also reported a similar finding when it tested an Acer Aspire One netbook running Windows 7 release candidate, only to find it lasted 2.5 hours less than when it ran Windows XP Service Pack 3 (5:54 versus 8:28, when both were at a low-power idle state).

Complaints have also surfaced on netbook user forums such as eeeuser.com for Asus Eee users, AspireOneUser.com for Acer netbook users and MSIWind.net for MSI fans.................

http://www.pcadvisor.co.uk/news/index.cfm?newsid=3200372
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 11:04:42
Oh dear.  :shake:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Simon on Aug 25, 2009, 11:21:39
Oops!
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 11:25:52
We'll all be using Macs in a year or two. :)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Simon on Aug 25, 2009, 11:34:35
If they brought the price down, I'd be using one now!  ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 11:39:50
You are not alone. Increasingly, I feel that Windows may be entering its death throes.
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: gizmo71 on Aug 25, 2009, 12:27:18
QuoteWe did observe snappier performance from Windows 7 on the NB205, particularly in the application open tests and hard drive speed. And the U123 saw an increase in energy efficiency.

So it's doing more for more power usage, and the headline grabbing loss of battery life could be a gain for some - perhaps most - laptops.

Journalistic integrity is dead. :comp: :conf:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 12:30:10
Trust me, Giz, it was never alive. ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Gary on Aug 25, 2009, 12:31:27
I could not give a damn  ;D  ;) which is an odd saying
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 12:33:11
You just can't get people to take them these days, Gary, they're an endangered species. ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Gary on Aug 25, 2009, 12:35:03
Quote from: Rik on Aug 25, 2009, 12:33:11
You just can't get people to take them these days, Gary, they're an endangered species. ;D
:rofl:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 25, 2009, 12:47:27
I'm not seeing any reduction in battery perfomance with Windows 7 on my Dell D630
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 25, 2009, 12:48:21
Quote from: Rik on Aug 25, 2009, 11:25:52
We'll all be using Macs in a year or two. :)

I have a Dell MiniMac9 running 10.5.8 already
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 12:49:06
Quote from: Glenn on Aug 25, 2009, 12:47:27
I'm not seeing any reduction in battery perfomance with Windows 7 on my Dell D630

I think you have to install it first, Glenn, not just stick the CD to the lid. ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 12:49:26
Quote from: Glenn on Aug 25, 2009, 12:48:21
I have a Dell MiniMac9 running 10.5.8 already

There's hope for us all then.  :thumb:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: zappaDPJ on Aug 25, 2009, 16:24:18
When I read the article I was expecting to see a comparison between Windows 7 and Vista, not 7 and XP. It would be more interesting to know if Microsoft has achieved their aim of making 7 less power hungry than Vista.
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Steve on Aug 25, 2009, 17:02:57
Probably the comparison is with XP as it's currently the default OS for netbooks
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: zappaDPJ on Aug 25, 2009, 18:31:12
Good point :)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Den on Aug 25, 2009, 19:14:27
Quote from: Rik on Aug 25, 2009, 11:25:52
We'll all be using Macs in a year or two. :)

Why are you planning on winning the lottery  :eyebrow:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 25, 2009, 19:18:56
It seemed a good idea at the time, Den. ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: D-Dan on Aug 25, 2009, 20:23:40
Linux rules when it comes to battery life - and it's free :)

Steve
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Sebby on Aug 26, 2009, 00:09:42
Quote from: Simon on Aug 25, 2009, 11:34:35
If they brought the price down, I'd be using one now!  ;D

Don't look at the upfront cost, look at the overall "cost". ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Simon on Aug 26, 2009, 00:39:27
Gertcha!  ;D   White!  :ack:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Sebby on Aug 26, 2009, 14:21:31
Quote from: D-Dan on Aug 25, 2009, 20:23:40
Linux rules when it comes to battery life - and it's free :)

But in all other ways, it's a pain. :P
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 15:43:00
Back on topic  :eek4: with w7 installed on my D630, the battery lasted 5hrs today
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 15:43:47
Do you have a benchmark to compare that with, Glenn?
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 15:50:05
It's never had XP on it, so no, but with Vista it was in the same region
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 15:58:28
Suggesting that 7 is no better or worse than Vista. OK, fancy do a clean install of XP?  :evil:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 16:04:25
Quote from: http://reviews.cnet.com/laptops/dell-latitude-d630-laptop/4505-3121_7-32445398.htmlOur Dell Latitude D630 included a nine-cell battery that extends one inch in front of the machine (a bit awkward, considering batteries usually extend off the back); a six-cell battery is available and would knock $29 off the price. The extended battery served the Latitude well in our taxing DVD battery-drain test, where it held out for 4 hours, 45 minutes, the longest life we've seen (to date) for a thin-and-light.

So it is little different to XP
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 16:07:12
You're no fun, Glenn. ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 16:11:40
I do have 4 retail copies of XP sat on the shelf, with it only installed on 1 PC in the house.
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 16:12:46
Each PC has a different OS installed;

XP
Vista Ultimate
Windows 7
OSX 10.5.8
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 16:53:44
I think you switch them around and compare.  :whistle:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 17:00:19
You come down here, and I'll let you do it :evil:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 17:08:16
;D Bring them here, you get to try Sue's cooking that way. ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 26, 2009, 17:09:24
3 are easy, but one is my game PC
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 26, 2009, 17:22:47
Nae bother, use a low loader. ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Ted on Aug 27, 2009, 16:35:19
Quote from: Sebby on Aug 26, 2009, 14:21:31
But in all other ways, it's a pain. :P

Oi, Macboy!  (http://i707.photobucket.com/albums/ww73/infin8t/bum.gif)    ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 27, 2009, 16:38:44
:rofl:

You Unix people are all the same, Ted. ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Aug 27, 2009, 16:45:47
Mac's run on unix too
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 27, 2009, 16:47:18
Isn't that Unix runs on Macs too?  :whistle:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Sebby on Aug 27, 2009, 17:18:07
Mac OS is based on Unix. :)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Aug 27, 2009, 17:20:14
Close enough. ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Ted on Aug 27, 2009, 20:17:33
Quote from: Rik on Aug 27, 2009, 17:20:14
Close enough. ;D

Philistine!  :o
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Simon on Aug 27, 2009, 21:26:34
Glad I'm not a Unick.  ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Steve on Sep 02, 2009, 12:49:20
More info here http://news.bbc.co.uk/1/hi/technology/8232995.stm it would appear your netbook battery may last longer if you had a previous Vista install (uncommon I suppose)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: D-Dan on Sep 02, 2009, 19:56:32
Who's a eunuch?
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Simon on Sep 02, 2009, 22:22:51
Keep up, Steve!  ;D

Quote from: Sebby on Aug 27, 2009, 17:18:07
Mac OS is based on Unix. :)

OK, so it was a pretty feeble joke.   :red:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Steve on Sep 02, 2009, 22:41:43
Quote from: D-Dan on Sep 02, 2009, 19:56:32
Who's a eunuch?

I haven't got the balls to say  :back:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Sep 03, 2009, 09:22:41
:grn: :karmic:
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Steve on Sep 03, 2009, 09:36:59
Thanks Rik
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Technical Ben on Sep 03, 2009, 23:21:08
Um, that makes no sense there Stevethegas. As software should not change a future state of the hardware, if you replace the software (did I explain that badly?). I too would like to see a vista/7 comparison as they are quite different from XP. It's like running explorer and Crysis the game and saying the game uses more power to run. ;)

So it sounds more like a driver bug on an unreleased candidate (hence it still being beta). Perhaps the vista rig had a better driver for running the laptop and it's power consumption.

It could be really simple like power settings turned off by default, power stepping in the processor not enabled, or just a processor/gpu hungry gui. Oh, or alot of HDD use. Should all be easily fixable.
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Sebby on Sep 03, 2009, 23:23:37
I can't imagine that W7 has a higher hard drive usage than Vista!
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Sep 04, 2009, 09:51:56
Play John Lennon, Seb, it might help. ;)
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Sebby on Sep 04, 2009, 13:49:11
Vista is beyond help. :P
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Rik on Sep 04, 2009, 15:23:13
 ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Gary on Sep 04, 2009, 16:26:40
Quote from: Sebby on Sep 04, 2009, 13:49:11
Vista is beyond help. :P
Vista works just fine  ::)  ;D
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: esh on Sep 04, 2009, 17:24:45
When SP2 for XP came out it made a huge dent in battery life because of a long-standing bug where it constantly gave max power to all USB devices instead of degrading the power class as per requested. It was fixed. Still, I imagine W7 will always use more power if you are using a non-GDI graphics rendering base, like Aero, as it requires some form of graphical acceleration.
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Glenn on Feb 09, 2010, 14:56:37
Microsoft says that extensive testing and conversations with OEMs indicate that Windows 7 is handling notebook batteries exactly as intended - despite user claims that upgrades to the new OS have caused significant degradation to battery life.

http://www.theregister.co.uk/2010/02/08/microsoft_on_windows_7_battery_complaints/
Title: Re: Windows 7 slashes netbook battery life by a third
Post by: Technical Ben on Feb 09, 2010, 17:42:53
Shock! News just in.
Piling on the eye candy burns up your calorific stores!*



*The extra fancy effects in Windows 7 uses more processor power, and thus more battery power.