Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Huge battery drain on FZ38M

24 May 2009   #1
lazyguy

Windows 7 Ultimate x64, Windows Vista Home Premium x32
 
 
Huge battery drain on FZ38M

I have a Sony Vaio VGN-FZ38M with the default battery, a VGP-BPS8. On Vista 32bit I could get a couple of hours on the battery on power saver, but on Windows builds 7000 and 7100 64 bit I'm only getting a maximum of 40 minutes! When I mouse over the battery logo in the Notification Area it says I have a few hours but it drains much quicker than that! Is this a driver issue, a 64bit issue or a 7 issue, and is there any way to fix it?

Thank you in advance.


My System SpecsSystem Spec
24 Jun 2009   #2
OnOffPT

Windows7
 
 
Check drivers and Power Profiles

Hi,

I recently installed Windows7 on my FZ38M and I didn't notice any problem with it (yet). I haven't used it a lot with battery but I will try it.
During the install I remember that it didn't find the drivers for Vaio Power Management. Maybe that's your problem.

Anyway, please check that you are using the appropriate "power profile" like battery mode or something like that. It should reduce the frequency of the CPU and therefore increase your battery life. WiFi takes an important slice of your battery as well.
My System SpecsSystem Spec
25 Jun 2009   #3
Fliplip

windows 7 HP 64bit
 
 

I find the same with my Asus EEE PC901 Netbook.
I could get close to 4 1/2 hours with XP but im lucky to get 3 with W7.
I guess its just working a lot harder.
My System SpecsSystem Spec
25 Jun 2009   #4
zigzag3143

Win 8 Release candidate 8400
 
 
power usage

Quote   Quote: Originally Posted by Fliplip View Post
I find the same with my Asus EEE PC901 Netbook.
I could get close to 4 1/2 hours with XP but im lucky to get 3 with W7.
I guess its just working a lot harder.
Hey all welcome to sevenforums

I think you should check the power options in control panels. Win 7 could use slightly more power than XP but more likely its set to performance instead of balanced. I like the performance power because I run my lap brick on ac about have the time

Hopes this helps and again welcome to SF. keep on asking questions we learn from the answers too.

Ken
My System SpecsSystem Spec
25 Jun 2009   #5
lazyguy

Windows 7 Ultimate x64, Windows Vista Home Premium x32
 
 

Well I checked and double checked and it's definitely on Power Saver. If it's on High Performance I barely get five minutes.
My System SpecsSystem Spec
25 Jun 2009   #6
Fliplip

windows 7 HP 64bit
 
 

Yeah, mine on power save as well. Even the CPU fan is on passive while running on battery.
My System SpecsSystem Spec
27 Jan 2010   #7
hellskitchens

vista
 
 

Hi on my Vaio i experienced the exact same problem despite the laptop being less than a year old. Sont stated batteries are not covered under warrenty but i could buy a new one for a special price of 160???!!
I said no thanks but i have seen some decent replacements with guarantees for about the 70 mark.
My System SpecsSystem Spec
27 Jan 2010   #8
lazyguy

Windows 7 Ultimate x64, Windows Vista Home Premium x32
 
 

Recently my battery suffered further problems: It didn't say how much charge it had left at all. Taking it out and putting it back in again solved the problem, but although I haven't had time to check on Vista yet I suspect the problem is in the batteries, not the OS. Speaking of which, I really need to actually buy a copy soon - I'm still on 7100!
My System SpecsSystem Spec
Reply

 Huge battery drain on FZ38M




Thread Tools





Similar help and support threads
Thread Forum
Laptop won't boot fully after battery drain
My parents were redoing my "office"/mancave, and they unplugged my laptop from the surge protector I was using, and plugged it into a different one, which apparently cut off the power going to my laptop. So my battery ran down to nothing, and my computer shut itself off. Now, I'm on a different...
General Discussion
How often should I do a power drain?
I just recently discovered power drains, and it even brought a headphone jack back to life. What I'm wondering is, should I do it regularly, or just when something starts to act up? Like Maguscreed said on my compressed gas question, I am a bit hesitant when it comes to my laptop, but only because...
Performance & Maintenance
Is windows locked drain on battery
When running windows on notebook (treated like desktop) on battery and with inactivity it switches to locked is that a drain on the battery and secondly how do I extend that time before it goes into lock Thank you
General Discussion
Battery drain during hibernate
I may be losing my mind, but I'm 95% sure that I'm experiencing intermittent battery drain while in hibernate mode. For example, I worked all day yesterday with my laptop (Compaq CQ40) plugged in and hibernated with the the power at 100%. I had saved my work, but left three Word docs, two Excel...
Performance & Maintenance
Battery Drain while powered off ?
My new HP Dm3T laptop is great, except that when I turn it off at night, the next day I notice significant battery drain, just from being off overnight. For example, it was at 100 % charge this past friday night. Then on saturday around 1pm when I turned it on, it had about 91% charge. This was...
General Discussion
Battery Drain
I have an HP HDX18t with Vista 64-bit and Windows 7 64-Bit as dual boot. Starting yesterday, when I boot into Windows 7, I get a message from my battery indicator reading, "Fullu Charged" Consider replacing battery. The icon has a red xo where the batter is. When I unplug the laptop, the battery...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 14:24.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App