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  • Is there a way to automatically disconnect a notebook from the eletrical power-supply?

    - by Diogo
    I know this looks like weird and useless, but let me explain... I'm running Windows Assessment and Deployment Kit (Windows ADK) to make some tests on Windows 8 Preview. One of it's assessment is the "Battery Run Down Test", which tests battery consumption with some procesor load. I'm trying to "automate" in some way this test, I mean, I wish to execute it without any human intervention (such as manually disconecting the eletric power source to leave my notebook running only from batteries to run this assessment). So, there is some ACPI API, Windows API or even an easy bat shell/VBScript/Powershell command to do this? Does someone already made something like? PS: I'm asking this because I couldn't found any answer, but maybe someone here would have any tip...

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  • Can I run my MacBook in clamshell mode without being connected to power?

    - by kch
    Hi, At home, I run my MacBook in clamshell mode (closed lid, external display). This works fine when you're connected to the power adapter, but it doesn't work when running on battery. That's how it's supposed to be and Apple has some kb entry on the issue. But it's also lame. You can prevent the machine from sleeping when closed by running InsomniaX, but then it'll assume the builtin display is still active, so you end up with a two-display setup when you really only want the external. This is obviously less than ideal. So, is there any work around, hack, utility, black magic that I can use to make it run in clamshell mode while strictly on battery power? Also, bonus points for a solution that makes the AC status not affect the machine state at all. (Like, you know, it does normally, when not in clamshell.)

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  • Portable, battery-powered, wireless access point, ethernet adapter

    - by Jed
    I am in need of an adapter that will convert an ethernet port into a wireless access point. I have found a handful of devices, but I'm unable to find a device that is battery powered. Does a self-powered wireless access point even exist? The particular scenario that I will be using the device for is not your typical computer/PC scenario. For the curious, here's a bit of background on the problem I'm trying to solve: I make devices (controllers) that monitor water systems. Our controllers have a Webserver that serves out web pages so that users can configure the controller's settings. Typically, the user will use a cross-over cable to connect directly to the controller's ethernet port with their laptop to gain access to the controller's web pages. Now that tablets (devices that don't have an ethernet port - iPad, for example) are becoming more common, I need to find a device that will convert the controller's ethernet port into a wireless access point so that the user can connect to the controller's web pages via Wi-Fi or Bluetooth. It's worth noting that this wireless device that I'm looking for will NOT be permanently installed on the controller. It will be a portable device that the user will use on any of his controllers when he needs to make a connection to the controller. If you know of a device that will solve the scenario that I mention above, please share your info.

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  • Get Taskbar's Battery and PhoneSignal indicators icons and draw into a picturebox (C#/WindowsMobile)

    - by Christian Almeida
    Hi, Is there any way to get taskbar's battery and phonesignal indicators icons and then draw into a picturebox or something? Why do I need this? I need all screen space available, so all forms are maximized and they cover up the windowsmobile taskbar. But, I have to display information about battery e phone signal strength in just a couple of forms. I know how to get their values (like systeminformation.phonesignalstrength), but what I want is the "current icon", so I don't need to worry about their values. It's just a visual information for the user. In last case, if this is not possible, how to get those icons from windowsmobile shell, so I'll draw them by my self, treating each differente status/values that they assume. (This is what I don't want to do!) Thanks in advance and sorry for my poor english.

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  • Windows 8 auto-hibernate from sleep not working on Retina MacBook Pro

    - by frenchglen
    I have a similar question to this one. Only my context is the 15" Retina MacBook Pro - and Windows 8. I have just the original Mac OS X Mountain Lion on there, then Windows 8 via Bootcamp. no rEFIt installed. (I just press ALT every time I restart windows, actually as a security measure to stop tech-unsavvy thugs, who, if the laptop is stolen, think it's only a mac and don't discover my Windows as quickly as they would've, and by that time I remotely activate various anti-theft mac apps and nab them that way). SO: like the related question asks, why isn't it behaving like it should? The Windows 7 FAQ states: Will sleep eventually drain my laptop battery? If your laptop battery charge gets critically low while the computer is asleep, Windows automatically puts the laptop into hibernation mode. But this is just not happening - on my rMBP Windows 8. It seems EVERY time I set the laptop to sleep (when it reaches 10%), then arriving home and plugging it in and hoping to simply resume my work, it does NOT save the session to disk and I lose ALL my work. Who's fault is it? Win 8's (a bug, grr)? Or Apple's EFI system (maybe fixable via editing EFI options/do I have to install refit to make it work perhaps?) Or maybe changing windows power options can somehow fix the problem? Thanks for your help.

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  • Dell XPS m1530 system cannot boot need 130w or greater

    - by KPS
    I have a Dell XPS M1530 and I lost my old AC adapter but ordered a new one. For the longest time it always had a battery charge so I was able to boot into the OS but now it is completely dead. I have a generic charger that slowly charged the laptop when it was in the OS but does not when the computer is off. When I boot up I get the following error: The AC power adapter type cannot be determined. The system can only boot with a 130 W power adapter or greater. Strike F1 key to shutdown. I cannot even enter the BIOs setup screen or boot menu, is there a way around this? I heard from the local tech that Dell has a special feature to boot from thumb drive before getting past the initial logo. I am doing my best to avoid purchasing a new charger since it worked just fine when the OS was running, I am hoping to get this thing going. Is there a way to charge the battery externally? Thanks in advance for any help!

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  • How long do Lithium Ion batteries normally last?

    - by Zifre
    On the laptop I have, I've had to buy a new Li-Ion batter roughly every year. I do use this computer quite a lot, but I'm wondering if this is normal. Right now, my battery is completely dead (it lasts for about 0.1 seconds), so I plan on buying a new one soon. Is there anything you can do to prevent Li-Ion batteries from going dead so quickly?

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  • Plugged in Not Charging.

    - by Eric Johnson
    Suggested steps to fix the nasty Windows power management issue of plugged in not charging. Option 1: Disconnect AC Shutdown Remove battery Connect AC Startup Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it’s ok if you only have 1). Shutdown Disconnect AC Insert battery Connect AC Startup Option 2: Turn off laptop. Unplug AC power. Remove battery. Replace AC power. Turn on laptop, allow OS to boot. Once logged in to the machine, perform a normal shut down. Unplug AC power. Replace battery. Replace AC power. Turn on laptop, allow OS to boot. The battery should once again be charging as normal Additional troubleshooting techniques: Check battery charging status in the BIOS Update BIOS Replace Battery (I did this and the new battery is not charging) See if the battery charging light works when the laptop is powered down. Supporting Links: http://jeffreypalermo.com/blog/plugged-in-not-charging-windows-7-solution/ http://social.technet.microsoft.com/Forums/en/itprovistahardware/thread/741398c6-a733-482c-a33c-2b61d9bc2984 http://www.youtube.com/watch?v=6Xf-ipP0wSY&feature=fvw

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  • Android: How to periodically check current location without draining the battery

    - by uyahalom
    I have a background service which works periodically by timer.scheduleAtFixedRate. It wakes up every amount of time (let's say 60 seconds for example) and checks for the location. The location is checked by locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000, 5, listener); and the actual location is collected from the listener's onLocationChanged. Now, when the phone is outside and GPS reception is good, this works fine. But, if the phone is inside, the GPS is almost always active - looking for a signal, and the battery is drained rapidly. I created another thread using a Handler and a Runnable in order to conrol the GPS active time accurately: I used locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, listener); and locManager.removeUpdates(listener); so I can open and close the GPS as I want. In this case, I can open the GPS for the exact amount of time, but found out that it doesn't lock in an area with good reception even after 10 seconds. So here I'm draining the battery again... I'm using API level 7, hence I cannot use locationManager.requestSingleUpdate. I have two questions: Is there any way to optimize this process? Will upgrading to API level 9 (and use locationManager.requestSingleUpdate) improve the process significantly? I mean, does it worth upgrading?

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  • Battery life if using GPS and background program

    - by StealthRT
    I was wondering if anyone has created an app that starts in the background and utilizes the GPS to gather the current Lat and Long every minute or so? If you have, would you please provide your battery times? As in, how long does your phone last until its all out of juice from just running that background app with standard cell phone programs. I'm trying to see if it would be worth the time to create an app for myself but if i work for 8 hours and dont have a way of charging my phone during that time then i dont want to be going home and it shut down on me since my app i would create works at my house. I need the app to work since it will see when i am in range of my home (from the GPS) and then send commands to my server at the house from my phone. So thats why it would need to be able to stay in the background doing a check every 1 minute or so. Or only turn on the GPS (Is is doable with iOS? & Android?) whenever its after 5pm each day so that it will minimize the load on the battery?!? Any help or suggestions would be great! Thanks!

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  • How do I disable Windows Search Indexing Service while on battery on Windows 7?

    - by Slaggg
    Since upgrading from Windows XP to Windows 7, I've found laptop battery life is reduced. One issue is that the Windows Search Indexing Service is constantly running, even when on battery power. Using Resource Monitor shows it is often the top consumer of CPU time and top producer of disk activity. I imagine this is one of the primary reasons the battery is getting drained faster. I cannot find any options to tell Windows Search Indexing Service to not index while on battery power. The only solution seems to be to stop the service, and also disable the service (if you just stop it, it will restart itself after a while). Doing this gives me considerably more battery life, but it's a pain because I have to re-enable the service when plugged in again. Is there a better solution?

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  • Integrated ads in phone apps - how to avoid wasting battery?

    - by Jarede
    Considering the PCWorld review that came out in March: Free Android Apps Packed with Ads are Major Battery Drains ...Researchers from Purdue University in collaboration with Microsoft claim that third-party advertising in free smartphone apps can be responsible for as much as 65 percent to 75 percent of an app's energy consumption... Is there a best practice for integrating advert support into mobile applications, so as to not drain user battery too much? ...When you fire up Angry Birds on your Android phone, the researchers found that the core gaming component only consumes about 18 percent of total app energy. The biggest battery suck comes from the software powering third-party ads and analytics accounting for 45 percent of total app energy, according to the study... Has anyone invoked better ways of keeping away from the "3G Tail", as the report puts it? Is it better/possible to download a large set of adverts that are cached for a few hours, and using them to populate your ad space, to avoid constant use of the Wi-Fi/3G radios? Are there any best practices for the inclusion of adverts in mobile apps?

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  • Windows 7 Aero Theme when on Battery

    - by Dan Revell
    Windows 7 has the full and basic aero themes that can be changed inside personalization. Windows used to automatically disable Windows Aero (transparency) when I unplug my laptop from the mains. I reset the theme and now it doesn't do this anymore. I can't seem to find how to enable this again. I've checked the advanced power options and control panel but turning back on this feature is eluding me. Any suggestions would be much appreciated.

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  • Compaq Presario CQ40 unexpected turn off

    - by CRoshanLG
    My Compaq Presario CQ40 (yeah, its pretty old) suddenly turns off after about 1/2 - 1 hour usage without any notice or warning. The power cable and adapter works fine (indicator bulbs show that power is given to the laptop), but it seems like machine suddenly plugged off from the power source. And when I try to switch it on, after the sudden turn off it simply won't turn on. I can only turn it on after letting it to rest for at least couple of hours! ** The battery has been dead for some time now, but it has been working fine on direct power supply until recently. Has anyone encountered this? and hopefully knows any cure?

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  • ARM laptop available?

    - by Ken
    Hearing all the fuss about some new consumer product that uses an ARM Cortex A8, I'm interested to get in on some of the action. But I want a real programmable computer running something like Linux. I've seen many, many reports in the past 2 or 3 years about prototype ARM laptops with great battery life. Unfortunately, when I tried googling today, all I can find are the old videos and press releases about the prototypes, not a shipping product. Is there an actual ARM laptop available today? Or did everybody give up and just use Intel Atom chips?

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  • Fedora 16 Running Hot

    - by sdasdadas
    Since switching from Windows 7 to Fedora 16, my laptop has been running incredibly hot (by the air exhaust). The laptop is an Asus K73S. Running 'sensors', I receive: acpitz-virtual-0: 75.0 celsius nouveau-pci-0100: 66.0 celsius asus-isa-0000: 75.0 celsius The only CPU hog is Firefox at 30 - 40% on average. My GPU information (from lspci) is: Intel Corporation Xeon E3-1200/2nd Generation Core Process or Family Integrated Graphics Controller (rev 09). Running lspci | grep -i VGA, returns: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: nVidia Corporation GF106 [GeForce GT 555M SDDR3] (rev a1) I don't notice a huge difference running without the battery, but it does seem a little cooler. Thanks!

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  • Is my laptop good enough to support my development needs? [closed]

    - by KodeSeeker
    I have an ASUS Pentium-R Dual Core CPU running at 2.20Ghz. It has 4 gb of built in ram, currently running a 64 bit Windows 7 . I just started graduate school and Im wondering whether I should go in for a new laptop or just repair the nagging battery on my current one. My requirements include - -Ability to support IDE's - I may end up running Eclipse, Visual Studio's and the like to help with my work. - Ability to run multiple VM's (not concurrently). Im currently running a Ubuntu 12 and 9 as VM's (not sure if this is overloading the system) - I'm a non gamer so I really dont care about a minor glitch caused by running a uber heavy game. -In addition I will have heavy use of Office Application Software and will be using my computer to watch movies and stream media. Looking forward to your replies and suggestions!

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  • ASUS N550 laptop not charging on ubuntu after updating kernel

    - by OBY Trance
    I'm using Ubuntu 13.10 on a pretty new ASUS N550jv laptop. When I was using kernel linux-image-3.11.0-11 everything was quite well (kinda..), however, when I updated the kernel using the automatic update, the kernels which were released afterwards (12+) were faulty on my machine, and caused the battery not to be charged and only stay at their current charging level (even when the machine was off!) The only fix I had was to roll-back to the '..11' version (on boot screen - advanced options), and hard-reboot (AC cord disconnected and reconnected) but now version 14 was released and "pushed away" the good old version 11. How can I fix that?? Please help me...

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  • Acer Aspire 7750-6801 windows 7 Home Premium x64 not charging properly [closed]

    - by MaurerPower
    I have an Acer Aspire 7750-6801 laptop running Windows 7 Home Premium 64 bit OS. The issue is that it will only charge sometimes when plugged in. I thought it might be a hardware issue, so I tried charging with the laptop off, and it works fine. Also when in Linux, or any other environment other than Windows, it also charges fine. The intermittent charging issue ONLY presents itself when in Windows. I've tried the following: Open Device Manager Under 'Batteries->', I uninstalled 'Microsoft ACPI-Compliant Control Method Battery' Then re-installed using 'Scan for hardware changes' Still no luck. It's quite urgent, any help would be appreciated as I am totally at a loss...

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