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25 Posts

11-01-2008

Arizona

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Re: Possible solution to low battery capacity in Win7

2009-11-06, 4:15 AM

So does this mean in order to have a decent battery life I have to give up switchable graphics, which is one of the reasons I bought this laptop in the first place?  

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5 Posts

10-07-2008

Virginia

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Re: Possible solution to low battery capacity in Win7

2009-11-06, 15:45 PM

I also had the same problem of increased wattage when I did a clean install of Win 7 64bit Ultimate. It seemed like the battery life dropped in half. When I disabled the switchable graphics and booted up on integrated graphics in the bios, my wattage dropped to the low 8's with wi-fi off. It had been hanging around 12-15 watts. I really don't use the AMD graphics that much, occasionally playing Bioshock. I had forgotten that when I had Vista, I also booted up with integrated only. Like others, it makes you wonder if there is a small amount of power going to both video chips in the switchable mode. All in all, it is not a big issue for me in my situation. Hopefully, future laptops with resolve this issue. Looking back, I probably could have gotten by without the dual graphics. I have had my T400 for a year now and it still Rocks!

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25 Posts

11-01-2008

Arizona

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Re: Possible solution to low battery capacity in Win7

2009-11-06, 16:23 PM

Yeah, I was thinking of converting it to integrated in teh bios, but it will be a pain when I need to switch back and forth frequently like I need to when I am rendering in Solidworks.

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40 Posts

08-28-2009

Germany

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Re: Possible solution to low battery capacity in Win7

2009-11-06, 17:58 PM

I saw the same when I switched the graphics to integrated.

 

The battery runtime seems to  be higher than when you use switchable and enable the intergrated one (I know about the problem with both being activated, this is not the case).

 

I also understand your point with the not so often needed ATI, but I guess that's different for us T500 users, since on our machines the difference between integrated and dedicated is much bigger, due to the more powerfull 3650.

 

 

Was the problem with both cards activated there with the last driver? I actually can't remember that... but the last one had that bug with the display  brightness which kinda rendered it useless...

 

Stefan

Thinkpad T500 2082-7SG
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548 Posts

09-10-2009

USA

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Re: Possible solution to low battery capacity in Win7

2009-11-06, 21:49 PM

Well, since I use the dock with DVI out to primary monitor I have to switch in Bios whenever I am docked vs on battery, this isn't a big deal for me.

T61p, T400
formerly x23, x40
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12 Posts

11-07-2009

Germany

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Re: Possible solution to low battery capacity in Win7

2009-11-07, 10:06 AM

Got the same problem with my t400s - around 11 w under Win XP und around 12 to 14 under Win 7 - but now it's below 10, with WLAN.

 

The problem for me was the Powermanager (current, 3.05). I disabled the Power Manager DBC Service, which disables most functionality of Powermanager, except the managment of the battery (I think). Now I use the windows integrated tool and everything is fine.

 

Another note: My Notebbok used to lose 4 to 5 percent of battery power during the night while staying in the dockingstation (hibernated to disk, so it shouldn't drain the battery). This problem is gone, to.

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25 Posts

11-01-2008

Arizona

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Re: Possible solution to low battery capacity in Win7

2009-11-07, 18:13 PM

Now I realize that the guys at Lenovo are busy, but come on. This thread has been up here for a week now with absolutely no response. Can't you guys at least post something to make us feel better about purchasing a product from your company.

 

When I bought this laptop last year it had problems upon problems and I could never get an answer. Eventually the problems were fixed through updates, but I am kinda getting tired of having no clue what's going on and getting no response from Lenovo.

 

Please help...............

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25 Posts

11-01-2008

Arizona

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Re: Possible solution to low battery capacity in Win7

2009-11-07, 18:36 PM

I contacted Lenovo Support and the response I recieved was," Lenovo does not support windows 7 yet", and that they could't help me. I don't think they should be advertising this "enhanced experience" if they don't even support the platform yet. I mean as soon as I said "Windows 7" whe was just trying to get rid of me.

 

This computer has been one problem after another, first the switchable graphics didn;t work, then the fingerprint reader was crashing the system every 2 days, then Vista was crashing every time I closed the lid. Now the battery life is 50%.

 

I really like the durability of the constuction of this laptop, but the support for it is horrible.

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12 Posts

11-07-2009

Germany

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Re: Possible solution to low battery capacity in Win7

2009-11-08, 19:20 PM

wrote:
Another note: My Notebbok used to lose 4 to 5 percent of battery power during the night while staying in the dockingstation (hibernated to disk, so it shouldn't drain the battery). This problem is gone, to.


Just to confirm myself - this problem is really gone due to disabling the power manager service.


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32 Posts

11-06-2009

Austria

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Re: Possible solution to low battery capacity in Win7

2009-11-08, 23:52 PM

just a question, after disabling it, can you still switch grafics?

 

where did you disable it?

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