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Battery and power problem and laptop won’t come on.

Q: Battery and power problem and laptop won’t come on.

My battery wound up dead after charging a while ago. So, I used the laptop without a battery with it plugged. Then it just shuts off as if it were over heating. Now, it never wants to come on. There are no lights indicating of life or charge and I tried different methods to bring it back to life but none work.

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I have tried a range of recommended fixes including: Resetting using the reset button underneath the laptopSetting Bios to recommended defaultsUpdating Bios to the latest version (2.76 2017-04-11)Removed and updated Lenovo Power Manager (v6)Deleted Microsoft ACPI-Compliant Control Method Battery in Device ManagerDisconnecting the battery and holding down the power button for 30 seconds, then reconnecting the battery.Disconnecting the Cmos battery and reconnecting.Changing the Battery Perfomance setting in Power ManagerPerformed Battery Gauge Rest in Battery MaintenanceHas anybody come across this issue and managed to fix it? A bit more background information:This is a Gen 1 X1 Carbon, purchased new on the 16th November 2012 (Model 3443CTO)It is very low use and is still in excellent condition, with no faults apart from mid last year when it started developing a problem with powering on where you sometimes needed to press the power button several times to turn it on.  According to Lenovo, this was a motherboard issue and they replaced the motherboard under warranty (which expired December 2016).  During June this year I replaced the battery with an Genuine Lenovo Battery and it worked well with no problems until last week, where it all of a sudden, it wouldn?t start on the battery alone, but started fine using the power adapter.After powering up it showed the battery at 0% charge and was very slow to charge, taking approximately 18 hours to reach 89% char... Read more

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i was working on a Dell Latitude 110L laptop for someone and I had to short two pins on the motherboard to erase the service tag and bios security password. the motherboard was placed upward and I was holding onto the battery attempting to do the short. while doing this i had the battery in. it was powering on fine then all of the sudden the battery fell out. after this the computer wouldn't power on without the AC power cord. the laptop wont boot up without the AC adapter in.

the power jack isn't broken (i used a multimeter to check).

I was thinking maybe I could solder a pin to the main source on the motherboard but I cant find it. Any tips??
also I might just order a new motherboard... however, I don't know if it's the battery. i'm afraid to check to see if the batteries good because I can't find information on the PINs to touch with the multimeter.
i don't want the battery to explode.. what should I do??

please help. thanks.

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My laptop has been distrubing since yesterday. Whenever I put in the power chord, the power light and battery light starts flashing together and the laptop does not charge. When I remove the chord, the flashing disapperas. Occassionally, it charges a little before going out again.  I tried using the laptop without the battery. It sometimes does not start and other times, it goes into the first few seconds of booting (the BIOS page) before going out again.  Do you guys know what this code indicates? Any help would be appreciated. Thanks!

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Hi, my girlfriend in Beijing has an Acer Aspire S3 latop. She bought a new battery for it a while back and told me it was no good. I was in Beijing recently messing around with it and found that actually the battery is fine (lasts for >4 hours) but when unplugged and running on battery power, the laptop often just cuts out suddenly (loss of power). I took the battery out and had a look and cleaned all the connections but they seem fine.

The next part is the strange part and which I hope might give someone a clue as to what's going on...

When it cuts out, it will never restart again unless the mains power cable is plugged back into the laptop. As soon as that's done and the power button is pressed, it starts up again and the cable can be taken out immediately (I mean immediately - you can plug the cable in, push the "power on" button and pull the cable back out in less than a second) and it will start up and run fine on battery again... until the next time it suddenly cuts out without warning.

Because any unsaved data is lost and because the laptop cannot restart without the power adaptor, this very portable and light laptop is now reduced to having to be kept at home all the time and plugged in, which is exactly the opposite of what she bought it for.

Anybody have any idea what the problem could be or suggest some tests that could be done to find out? She took it to a local computer shop but the guys there had no idea.

Thanks in advance for any adv... Read more

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Recently I noticed that the amber LED on my HP Probook 650 G1 flashing constantly, even when the laptop is powered off.   The System Tray battery indication is 100%, fully charged, when on AC power and 100% on battery power shortly after undocking.    I find the Probook won't power up if AC power is not available (no response when pressing power button) but remains powered when I remove it from the docking station.    Have the electronics that control this LED flashing and power up when not on AC gone bad?    Is this an indication of other failure? thanks

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Hello: Just received a beautiful W530 Laptop - love the T and W versions of this machines. However, with such a large power requirement, want to make sure that I will be able to run and charge the W530 on United Airlines, American Airlines, etc., using the supplied 170 W Power supply...  Please confirm your experience that this will work. Otherwise, using this laptop on long haul flights will not work. 

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Hopefully someone here can help solve my issue, because I'm practically at my wit's end with it. I recently ran Lenovo's Updater program and it installed a few new things on my Laptop... I don't remember all of them, but I know one was a BIOS update, a Firmware update (can't remember specifically for what though), as well as a few programs I was missing on my computer (like Lenovo Power Management, just to name one).  It's something I hadn't ran for a good year, so I'm sure everything was using an older version! In any case, it seems after I did that, many of the games on my computer started playing worse.  Long story short, after checking out a few programs to monitor what my computer's doing (CPU-Z, and even Intel's Extreme Tuning Utility), I noticed that my Laptop's suddenly only using a portion of what it can do. For example, the core speed should be able to go up to 2.6ghz - 3.3ghz... but strangely, it's staying at a solid 1.20ghz the whole time. No matter if I run any graphic-intensive games or do anything else that might need some extra power, it stays exactly at that number. Here's the weird thing though.  If I unplug my Laptop and let it run off the battery?  It shoots straight up to the 2.6ghz-3.3ghz, as it's supposed to.  As soon as I plug it in again, it drops right back down to 1.20ghz and many of my games run like crap again. I've tried looking up solutions online, but I've found nothing that helps. I've tri... Read more

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Now the laptop DELL 9400 is saying I cannot defrag because the battery is too low. But I dont use the battery at all. I always use the ac adapter cord.
Is there a setting to address this issue, or is this a hardware problem?

A:Using AC power but laptop shows using battery power

Turn off the laptop, remove the battery and then start up again (with the AC power attached of course!). Do you still get the problem? Or does the laptop not turn on at all?



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Since i bought a new laptop E7270, is it allowed to use my power adaptor my old Dell E6420 also for the new one?   If so i can use one adaptor at home and another in office and dont need to carry the power adaptor always.
Will this impact the battery performance of the new laptop?

A:If it is possible to use the power adapter of E6420 for my new laptop E7270? Will it impact the battery of the new laptop?

If the connector fits (it may not - the older systems use a much larger barrel connector than many of the new ones), AND the power (wattage) is equal or greater, yes.

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I made the mistake of using my laptop without the charger and letting the battery run down. I launched The Sims 4 before getting up and grabbing my charger. I didn?t check to see if the laptop was actually charging after I plugged it in, simply because I?ve never had an issue before. So I set my laptop down and walked away, letting my game load. I left the computer alone for nearly 20 minutes. I came back and as soon as I went to use it, the screen went black. Luckily though it wasn?t entirely dead. I pressed the power button and it came back on briefly. The battery symbol had an ?X? and it said 0%. I noticed then that my charger wasn?t completely plugged into the machine. So I plugged it in properly and  I didn?t see a little charging symbol or anything but it didn?t shut down immediately - The Sims was still running in the back ground. I loaded up a world and after a minute or two it died. I tried to turn it back on but I wouldn?t turn on. So I let it sit unbothered, charging for several minutes. I tried to turn it back on and nothing happened. The power button wouldn?t even light up. However, when I do press it, there?s a little red light that blinks at the bottom of my laptop. I went online and tried to find some solutions. I tried the one where you detach the battery and the charger and hold the power button down for 30-60 secs and that produced no results. I think it might be a charger issue, but how do I know for sure? Any... Read more

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Hi I bought Lenovo yoga book in June in Hongkong. And start to have some problems to charge it since September. Now it worst than before. When on charge, the light turns on, the icon  battery says it charge but the computer doesn?t charge at all.. still 10% battery, going less or more.. but switch off as not enough battery. The computer is under warranty..but thanks French Lenovo..as it comes from Hong Kong they can?t fix it..the only way for me is to send the computer to the company in Hong Kong!!I start to become crazy..change many times of cable but still the same. try to reboot but impossible as it noticed error 0x00001) and can?t use my computer anymore!Please if somebody can help me..the yoga book is nearly going to Be destroyed by my feet...or going to the sea as I am sailing around the world. or if someone as any number, email adress of Lenovo headquarter to be refund ! thanks  anna

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Help! We have a 2 month old P51 and it shut off while on charger power and now won?t turn back on. It is still plugged into the charger but  none of the indicator lights are lit. i have checked all the connections and switched power outlets.Thoughts as to whether this could be an issue with the charger or the computer itself? Thanks in advance. 

A:P51 won’t power on

First thing is when you plug in the charger, does the little THinkPad red led flash 3 times on the top ? If not, then the power block is not being recogized. Remove the power cable and the battery, press and hold the power button on the ThinkPad for 10 seconds. Then, before putting the battery back in, keep the lid closed. Plug in the power cable. Does the red led on the "i" of ThinkPad blink 3 times? If not, one of two things could be dead:  Either the powerpack (more common) or something inside the ThinkPad. I would strongly suggest that you find yourself another powerpack and see what happens...

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I have an Inspiron 15 5000 series with an intel core i7 processor. It would not power on earlier today, so I assumed that it was dead, but once I plugged it up to the charger nothing happened. I tried taking out the battery and putting it back in after holding down the power button for 30 seconds but that didn?t work. I still have the charger in the computer and the little light on my computer is on but my screen is black and the computer is not making any noise. Please help!!!

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My laptop was fine a few days ago but now when I plug it into the wall ac power the laptop will not turn on at all no noise. However when I plug the power cord in I do get a light for the battery charging,(yet to see if battery will take a full charge and come on) but so far nothing. Any ideas as to fixing this or why this could happen. can I get files from laptop harddrive to my pc? Remove laptop hard drive and connect to my pc? Thanks

A:No Ac Power or Battery power to Laptop

Sounds like a major failure in the laptop.

You can buy adapters for laptop HDD to Desktop IDE drives, quite cheaply. That will allow you to access the files on the hard drive.

USB cases are also quite reasonable for laptop hard drives and give an easy way to access the drive.

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One year later, I'm back with another problem! I just hope this is the correct forum...

I purchased the laptop I'm using about two years ago. For those two years, I have never removed the battery, but have used AC power nearly always, with the exception of a few quick trips and a couple of hours once every week or two. Initially, the battery lasted about 2 hours on a good day, with Wi-Fi enabled. A few weeks ago, that was reduced, seemingly instantly, to about 5-10 minutes. Upon doing some research (which I should've done when I first got the laptop), I'm pretty certain that the battery is about to kick the bucket.

What worries me, though, is how the laptop seems to be becoming increasingly hotter these past few weeks. Despite the fact that my battery hasn't been involved in any recalls, the paranoid side of me is hesitant about leaving it in for much longer. For now, however, being able to afford a new battery is up in the air (that's a nice way of saying not an option). So, I attempted to remove the battery and use only AC power. About three seconds after I turned the laptop on, it shut off. Upon a second and third try, it wouldn't turn on at all. I let it rest for about 30 minutes and tried again; it lasted long enough to show the Windows XP logo (ten or so seconds) and again shut off. I popped the battery back in, and it turned on without a problem.

So I'm left wondering: what's wrong? Has my laptop become dependent on batte... Read more

A:Laptop won't run on AC power without battery.

I've seen a number of laptops that won't run without the battery, so I'd say that could be normal. A laptop shouldn't damage the battery pack with it plugged in continuously. My wife's laptop has been plugged in most of the time for a year, the battery is just fine. The charging circuit in the laptop should not overcharge the battery.

If the laptop is getting hot, you might consider blowing the dust out of the fans, which is a major reason for overheating of laptops.

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When I have the laptop off (Toshiba A75-S229) the ac power light is on and the battery charge light is on. As soon as I turn on and it starts to open windows the charge light goes off. Then as windows opens the laptop runs only on battery even though the ac light is on.
Except if I enter bios then the battery keeps charging.
Just wondering if anyone knows a setting or conflict that would keep laptop from switching to ac from battery?
Or could there be something in msconfig that I could check?

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Hi all,

I have searched and searched for an answer to this problem, but can't seem to find a solution. Maybe someone here has a new idea...

Basically my computer suddenly stopped running on battery power. It had been working just fine until about two weeks ago. Here are the bullet points:

The computer won't turn on with battery installed unless the A/C adapter is also plugged into it. And, once on, the computer will shut down immediately if the A/C plug is pulled out.
The battery is relatively new (less than six months old.)
When pressed, the button on the battery itself indicates the battery is healthy (all lights illuminate, none flashing).
The meter on the computer indicates the new battery is working properly. When left out for a couple days and then put back in, the dell meter shows that it has lost 1% power and goes about charging it then successfully reports 100% charge after a while.
I've tried two old batteries (known bad, just haven't gotten around to taking them to be recycled) while using A/C adapter to see what the battery meter on the computer says... The meter displays an empty battery with a red x at the bottom when either of those is put in.

What I can't understand is why is it only working one direction? The battery will accept a charge from the computer then won't run off that charge later?

Other suggestions I've already tried, but haven't helped:
Verify computer has latest bios update.
Check for bent contacts.... Read more

A:Laptop Won't Run on Battery Power

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Hi, My laptop (Dell Inspiron 1000) is missing the battery but I thought I could power it up using the AC adaptor but no luck. Should this particular laptop power without the battery?

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So i have this old Asus laptop for about 4/5 years now, and the battery for it has already died 2-3 years ago. I am still using it untill now with the power brick only and sometimes it's turned off all of a sudden. Last time that I had the battery still works, when i play game (shadow of mordor) even when charging battery still decreased. Is it possible that my power brick require more voltage to equal my laptop's energy output?

A:Can a laptop without battery ran out of power?

Remove the battery and see if it works with the brick only.

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Hello!  I have an R400 that won?t restart when the power adapter is connected.  If a restart is attempted with the adapter connected, the status lights just cycle through repeatedly (hdd, caps, numlock, batt, etc).  As soon as the adapter is disconnected, the restart will resume.  Once the restart resumes, the adapter can be reconnected and the restart will continue. The adapter will charge the battery adequately.I have another R400 that?s fine from which I?ve tried the adapter and battery.On the problem laptop, I?ve tried a known good different hard drive with a fresh install of Win 10.I suspect a hardware problem of some sort but I don?t want to shotgun it if you know what I mean.Thoughts?Thank!

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I recently restored a R51 (type 2883) laptop to factory default to re-deploy to a new user. However, as I found out when I tried to give this laptop to the new user, when this laptop is booted without an ac adapter (only on battery power) the windows login splash screen is not displayed and the mouse won't move. After this happens the splash screen will not display even with a power cord unless I reboot into safe mode, log in, and then reboot again with the AC power plugged in.

I updated the bios to the most current version and verified that Userinit (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon) is C:\Windows\System32\Userinit.exe. Is there anything else you can suggest to help?

Thank you for your time.

A:IBM R51 laptop won't boot on battery power

enter the bios and check date time year settings and set default or safe settings..

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In my case the computer -  a Compaq SA423 - with  the AC adapter on its own won't start without the battery either.  However,  once it has fired up, it will run with the AC adapter on it;s own without the battery in place.  The AC adapter will charge the battery, but there is no power cord in the battery icon showing if the AC adapter is plugged in UNLESS I remove the battery. What is going on?

A:Laptop won't power up without Battery in place

Hi,In order ti isolate the issue further, i request you to download the latest bios from the HP site and check for the issue occurrence.http://www8.hp.com/us/en/drivers.htmlAlso, to confirm the AC Adapter issue, request you to connect this adapter to ant other notebook and check.Please reply with the results.

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in the taskbar the power meter is not there and i tried resetting it to the defaults but it still isnt there any ideas?

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I have a Toshiba Satellite laptop (circa 2003). I know my laptop battery has been drained for a while and I was almost solely relying on the AC adapter's juice to power my machine. Recently, I lost all power to the laptop. I thought perhaps my battery had finally had it so I bought a new battery. Well, then I couldn't charge my battery, so I bought a new AC adapter. I still have no juice. It looks like the AC adapter is working (the light is on it to show it's getting power) but it's not transferring that power to the machine.

I think it may be a bad connection between the adapter plug and the laptop. I don't know how involved of a fix this is.

Any suggestions on what type of fix might be needed? Is it better to just scrap this laptop and get a new one? Thanks for your help!

A:No power from battery or AC adapter on Laptop

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I bought this HP laptop not so long ago, and just recently it has stopped being capable of operating on battery power. In addition, it is constantly charging the battery, but the battery charge meter does not rise. I was just wondering if anyone has any suggestions on how to fix it myself, or will I simply have to part from the laptop for a few weeks/months to send it back to the manufacturer?

A:Laptop: Battery does not charge/power

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A user brought me her laptop (an Acer Aspire 4520) for start up speed issues. While dealing with that I noticed that after shut down, I couldn't power the machine back up by pressing the power button. I have to unplug the power chord and then I can power the machine up. Also, if the machine is in sleep mode the power button doesn't wake it whether it's plugged in or not. You have to unplug it AND pull the battery to bring it back to a state where it will power up.

I've tried every configuration provided to me be Vista to configure the power button behavior in the CP but no luck...

Windows Vista Home Premium 32Bit
AMD Athlon 64x2 TK-53 1.7GHz
GeForce Nvidia 7000m

A:Laptop will power up on battery, but not while plugged in

The motherboards charging circuit could be damaged...

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Hi, please I just upgraded my HP Pavilion 15 Notebook PC to d latest Windows 10 update, and after like 3 days, the system will not power on when I press the power button. But if I remove the battery and power the system through AC, it'll come up.  Also, when I remove the battery and press the power button for like 20 secs, and put the battery back, then the system will power on. Please how do I solve this issue???Thanks NOTE: The system has been on windows 10 for over 9 months, and this started after I updated to the latest windows 10. 

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I have a Toshiba Satellite laptop running Win XP. It's about 5 years old. The last couple of days, when I have it plugged in, the battery indicator icon acknowledges it's on AC Power, but the battery is still draining and the laptop turns off. I have not changed the power settings at all, but I checked them and all seems fine.

The battery is the original (came with laptop) and the AC adaptor is fairly new (purchased this year). This laptop did have problems with the AC port coming loose, which I fixed. Twice. First by soldering it back onto the motherboard, then by changing it alltogether.

As it stands, when my laptop is plugged in and turned on, the battery drains until it turns off (about an hour). The battery will charge when the laptop is off. The battery charge indicator (led) light turns OFF when I power up the laptop. It turns on again, when I power down. The battery will only charge when the laptop is off.

Is this a battery issue? An AC jack issue? An AC adapter issue? Does anyone have any experience with this? Sorry for length, but I am trying to foresee any questions anyone might have.

A:Toshiba Laptop & Battery Power

I would say it is most likely a battery issue if it is original, there is circutry in all laptop batteries that control charging and discharging and for safety. My guess would be start you search here, the battery is probably due for replacing anyways. If the adapter can charge it off then the adapter should be OK.

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I have a Compaq Presario R3000 that I've owned for about 1.5 yrs. Several months ago, I noticed that it keeps switching to battery power even when plugged in. It used to happen when there was movement but now it can happen at just about any time. I assume it's a problem in the AC jack but what I want to know is....how much trouble is this to "fix"? Is it a fairly common problem with laptops?

A:Laptop keeps switching to battery power

It's a very common issue with laptops, and I'd get it corrected BEFORE you end up with this! This is the second of two laptops I've seen in the last year that people ignored the advice to deal with the loose power connection.

As to how difficult it is to fix, that's going to depend on the specific make/model of laptop, and how much disassembly is required to repair/replace the jack.

P.S. Yes, the MB was destroyed and needed to be replaced in both laptops.

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I own a acer travelmate 250 Laptop.

When I remove the power cord the screen goes dark, but the laptop is still running, I can open and close the cd tray.

I have also noticed that a beeping noise happens when I move the laptop around.

Any ideas ?

A:Trouble with laptop battery/power

perhaps the battery needs replacing? If the battery is low, the computer could be set to hibernate or something

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My friend's laptop won't turn on. It doesn't start to boot or anything. My first thought is it's either the battery or the A/C adapter but I'm not sure how to check those without having swappable pieces (which I don't have.)
I took the battery out and tried to power on with just the A/C adapter plugged in and same as with the battery in, only thing that happens is the little light with the lightening symbol flashes 3 times. Also the little light where you plug the charger in lights up while the charger is in. Would the laptop power up with just the A/C adapter plugged in and no battery?

A:Laptop won't power on. How to check battery?


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Hi There having a problem with this Compaq Evo N600c laptop Battery shows full power battery should be good. The laptop won't power off the battery power powers off AC Power supply. I am trying to learn more about the battery power management settings but from what I Know so far they seem fine any Ideas would be much apreiciated.

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Hello every one!I have an HP probook 4530 with upgraded windows 10 -64 bit on it. it was working pretty well since yesterday that i shut it down. (i'm used to hibernating my laptop, but i shut it down once every week) after that i could not make it start. it won't turn on, and the battery power LED on the side of it keeps blinking white for the whole morning!I tried battery, AC power, and both plugged in, but the power button exactly does nothing.i've found a table here with buttons flashing and sequences but neither matched my situation.I have to add that it has recently been warming up a little and had a few lags, which i guessed it's because of the new windows.please help me... i really don't want to hard reset my laptop because i have much data on it.thank you so much...

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Does removing the battery and using the laptop on AC power, having the charger plugged in for many than 2 days, damage laptop hardware in any way?


View Solution.

A:Does removing the battery and using the laptop on AC power c...

No it will not do any harm. Actually it is better for the battery to remove it if you are constantly plugged in. 

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This is definately a hardware issue. This laptop will stay on only for a few seconds, and then sometimes for even less. I plug it in press power, it powers up and appears to start working than it suddenly shuts off. I was thinking maybe a power supply, but because I have never changed a laptop power supply, I thought to inquire here to see if anyone might have some advice. All help appreciated!


A:laptop won't hold power, could it be battery??

power supply or battery. Shorted battery could cause the problem but so could a bad PS. You need a voltmeter to tell which.

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Hello. My Lenovo Y450 laptop won't go to sleep/standby when its operating on battery power. It will go to tsleep if its plugged in to the AC adapter. I tried closing all programs, and different user accounts to see if it is a specific program that's causing the issue but to no avail. I'm using Win 7 ultimate 32-bit.

--------[ EVEREST Ultimate Edition ]------------------------------------------------------------------------------------

Version EVEREST v5.50.2100
Benchmark Module
Homepage http://www.lavalys.com/
Report Type Report Wizard
Generator Paul Tolbert
Operating System Microsoft Windows 7 Ultimate 6.1.7600 (Win7 RTM)
Date 2010-12-10
Time 12:19
--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer Type ACPI x86-based PC (Mobile)
Operating System Microsoft Windows 7 Ultimate
OS Service Pack -
Internet Explore... Read more

A:Win 7 Laptop won't sleep when on battery power

In windows 7 go to start menu, control panel power options, set the options you would like.

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It goes like this: my laptop is normally plugged in, high performance power settings, battery taken out. Every once in a while I put the battery in and use it with normal charge/discharge cycles, power saving settings. Now it somehow happened that when I put the battery in and windows booted up I had no sound whatsoever. Chrome or AIMP2 are not recognized in the volume mixer, and skype notified me that it was unable to access the sound card. When I put it to sleep and then woke it up again the sound came back. I then followed the same steps: shut down windows, booted up, no sound, put it to sleep, woke it up, sound available, a few times and always with the same "results".

Does anyone have any idea what's going on ? This never used to happen before.

A:I have no sound when my laptop is on battery power

Reinstall the sound driver and see if that makes any difference. Sleep and what does or does not work after waking can be driver issues.

How is it booting? From a "cold" boot or booting up from Hibernate. If its booting from Hibernate that can be the cause of the problem (shouldn't be but can be).

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what should be used in laptop power. it good only battery or AC Plug which best for long lasting battery situation. some people telling  use laptop  like mobile battery. when run-out charge again.on the other people tell if you use all time with AC Charging it will coused weaker battery by over charged........what is the right way   Use all time AC Charge  or Use Battery ???  awaiting for reply  Mazharul islam

A:what should be used in laptop power. it good only battery or...

Hi Mazharul,Please go through these useful HP documents regarding battery FAQs:http://support.hp.com/in-en/document/c01297640You may not remove power cord after full charge to use in battery mode alone. You can use with both battery and AC adapter plugged in, no harm.Please read this: http://h20564.www2.hp.com/hpsc/doc/public/display?docId=c00596784RegardsVisruth

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I've had this a while but never got around to getting ideas on the prob. 4 yr old Toshiba Satellite, Vista, updated OS/drivers... Most of the time it only boots with the power plug removed. After I get the windows loading scroll, I can plug it in and it boots fine. If plugged in while booting, it only gets to maybe the boot loader sequence and then powers off. If I run the boot repair, it may boot with power for a few times but always reverts to booting only without the power plug attached. Tried changing some system power settings with no change. I guess I haven't looked at the CMOS for anything odd. Battery seems to be charging/discharging OK. Boot load script seems normal. Any ideas?

A:Laptop only boots on battery power

Sounds like a hardware issue (ie: motherboard and/or power circuitry), not a Windows issue.

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Hi everybody, i discovered today that my PC shuts down at 37% without any reason or notification. According to AIda64, my battery has a 27% of physical wear...

Maybe virus? A problem with the battery? A problem related with the energy device?

My lap is ASUS X451M Win 8.1

A:My laptop shuts down at 37% of battery power

@el gitano
Try calibrating it drain your battery to 0% then charge it to 100%...

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It's so strange. Today when I turned on my laptop, suddenly, there was a message that my battery has problems so the computer might shut down suddenly. I tried different strategies, like uninstalling the battery driver, or letting the computer completely die. When it turned off itself at 6%, I turned it back on, and it was at 2 minutes battery life. Then in a few minutes, it said 4 minutes battery life for 6%. Now, it's passed an hour, and it says 3 minutes, but changes sometimes to 1-4 minutes. The battery meter is completely wrong, and I don't know what to do since it is closing the computer way too early. I'm still not sure what the problem is. Please help me.

A:Laptop Battery Meter is Completely Wrong and it says there's a problem with the battery

How long have you been using the laptop with battery? Is it still under warranty?

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Hi all, Is this a known issue at Lenovo 510 -14ISK.  I press the the power button to turn on the laptop , but the orange light only blinks 3 or 4 times and then turns off, leaving the laptop not powering. I ran the last BIOS update which was pushed by Lenovo. PS: The laptop doesn?t seem to respond at all. please help

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When gaming. on a Gigabyte P55k 670m Nvidia. I keep getting lags. The screen brightness fluctuates. I then checked the battery icon and opened the windows mobility center widget. When gaming in a window. I can literally see it swapping from plugged in to battery at any % between 0 -100% That when the lags happen.
I disabled the windows battery device in devices menu. It worked for the screen brightness but not the lag. Even on low graphics it does the same. I think this laptop is either faulty or it is a software issue, I dont know.
Please help.
Thanks in advance.

A:Laptop keeps switching between plugged in and battery power

Try removing the battery and running it strictly on the ac adapter. If it still dies out, then you know the charger's bad.

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About 4 months ago I performed a number of upgrades to my 4 year old Lenovo SL400 laptop.

I upgraded to a Seagate Momentus hybrid drive, upgraded my CPU, installed new RAM, purchased a new 9-cell battery and performed a clean intstall of Windows 7 Home Premium 64-bit (the computer came with Vista - Windows 7 was a retail upgrade).

I had several BSOD crashes which only happened when running on battery power. I was sure the battery was the culprit and RMA'd to the vendor for a replacement. I still have the issue with the replacement.

I notice a screen flicker a second or two before the crash. About half the time the computer recovers without crashing.

I've attached the dump files and system health report.

Any help would be greatly appreciated.


A:BSOD when running laptop off battery power

I saw the ThinkPad Display error in the 7-17 performance report so I uninstalled and reinstalled the driver for my display and I no longer have that error. I've attached an updated report.

Anyone have an idea what is causing my crashes? I'd love to be able to use this machine without being tethered to the plug.

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Hello, For the past couple of weeks I have seem to be running into an issue in which the laptop that I am using would shut down unexpectedly when around 30% battery life and unplugged. This as led to a host of other issues such as work not being saved before it decides to shut down and similar issues. I am not that much of a computer person, so the only thing that I could think of to find out what the problem may be was doing a battery diagnostics check through the HP support assistance, which states that the battery is in working order. I have no idea what is causing such an issue and I am badly looking for a solution, if anybody has had a similar problem and/or knows a solution to this issue please provide some light to the issue. Thank you.

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