Over 1 million tech questions and answers.

XP will only boot on battery power

Q: XP will only boot on battery power

Here's a strange one:

On my Thinkpad R31, if it is plugged into an outlet, XP hangs on the splash screen, it even hangs on all safe modes. If I unplug it and let it boot off the battery, it boots perfectly fine. Once it's booted, I can run it off the adapter without a problem. The adapter charges the battery fine, and the battery holds a charge for a little over three hours of light use (web browsing, word processing).

Any ideas as to why it does this? I've tested it several times and it always boots without a flaw off the battery, but never off the adapter. I don't even know what to begin with here its so strange.



BTW, it stops at mup.sys when booting in safe mode.

Preferred Solution: XP will only boot on battery power

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link http://downloadreimage.com/download.php. (This link will automatically start a download of Reimage that you can save to your computer.)

A: XP will only boot on battery power

Could be the power supply causing it have you tried another power supply?

Read other 3 answers

I have a hp pavilion dv4 with 4gb ram and windows vista and it won't boot under battery power even though when I boot it up with ac power it says the battery is fully charged.

A:Battery power boot up problem

How old is the HP? If its been a few years since you bought it, you might try re calibrating the battery from the BIOS, most HP and Gateway computers have a utility inside the BIOS for calibrating the battery. If not, let me know and I'll see if I can find one.

Read other 3 answers

I'm suddenly experiencing this problem. I'm unable to boot my laptop from my battery. But if I connect the power chord, I'm able to start it. There is no problem with restart, hibernate and other options on battery though. I've also installed batterycare to check the battery condition. It shows no problem with battery condition. Can anyone help me out with this problem?

A:Unable to boot from battery power

Do you have access to a digital multimeter my friend as it will show you if the thing is ok on voltage or not .

Having said that it might e holding a voltage but no current capabilities - how old is it? as Lithium batteries degrade from the day they are manufactured mate. On average that can be around three years. I personally would not rely on the battery health readout an actual check is best.

By he way depending on the make and contact set up check out too if there is any debris down inside those slots either in the battery (usual) or the machine.

Read other 9 answers

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..

Read other 1 answers

G'day to one and all.

I have a TECRA S2 running XP SP3.
All was well till I went to a mates place with it and plugged in the power supply and it would not turn on at all and no LED's even,

I removed the battery and then tried again and then the power and battery LED's flash together but nothing else would happen.

Tried several times with the battery in and out with the same results.
I disconnecter the power supply before removing or installing battery.

Don't even get to BIOS or a display. I put the HDD in a caddy and it is accessable.

A:Tecra S2 - Power and battery LED's flashing - No boot

> All was well till I went to a mates place with it and plugged in the power supply
Did you use the right AC adaptor?

To be honest it looks like a motherboard malfunction? possibly power supply electronic issue.
the power indicator would start to flash amber if voltage of AC adaptor is abnormal or computer power supply malfunctions.

Read other 1 answers

While on battery power (fully charged) My Lenovo G505 will not boot
It gets past the Lenovo screen, and sometimes past the User Welcome
screen; but it stops at a dark blue screen.
Control/Alt/Delete gets the Lock/Switch User/Sign Out/Task Manager
The laptop boots normally on AC power.
Please help if you can...
Thank you.

A:Solved: Partial Boot on Battery Power

Read other 7 answers

I have a strange issue. I have a Lenovo T60 laptop and I am experiencing problems with the power management/power guage.

It will often show the battery not installed (power gauge is a greyish-white color with dashed lines) or it shows a red X. It does not matter if I am on AC power or on Battery power, it will show the full range of power, battery level, not installed, or an error.

I have searched Lenovo's site and I seem to remember seeing an FAQ about this, but now that I need it, I cannot find it.

What can I check or do to stop this? While it is annoying, I am not sure if I am having a battery problem or not. I did check my battery on Lenovo's site to see if it was recalled and it is not.

I do appreciate any help that any one can give me.


Read other answers

My wife told me that her computer just turned off. I came home and found out that the power cord had a short in it and I replaced it. I tried to turn it back on and it started to boot up and then it turned back off. I tried again with the same results. I tried it with the power cord disconnected, with the battey (and the battery will not hold a charge long), still the same thing. I took the battery from my computer which is the same as hers, and it booted back up. If you turn it off and try to boot it up it will turn off after the windows logo. note: I just put a new motherboard in this computer about a week and half ago. I removed the memory one at a time and then it started to boot up, screen went black and then a short blue screen and looped back to start up. don't know if it is the motherboard or not, one thing I did notice, with the computer off the charge light isn't lit up at all. The power supply light at the plug is blue but no charge light. When the computer is up and running, in the systems tray you can see that the indicator shows power plugged in and charge indicated but still no blue charge light. I have a HP dv2171 with a AMD prossessor. Can anyone help me?

A:power supply, mother board or battery system turn off during boot up

I would run chkdsk /r on the hard drive from Recovery Console as going down probably created some magnetic shock to the drive, that can fix.

Read other 3 answers

Apologies for this enigmatic title but I couldn't find any other way to describe this strange behavior. So each time I unplug the laptop from ac power after shutting it down and though the battery has full power (and can retain good charging time) when I switch it on after a little while, let's say over 30 minutes after having shut it down, I always stumble on the date and time rebooting screen ( sorry I don't know what to call this exactly).

Thanks for help.

A:Solved: ibm 600x needs date boot resetting when off ac power despite full battery cha

Read other 11 answers

Hello! I recently decided to dig up my old Lenovo Ideapad Y410p, and to my surpise, it had been dropped before without my knowledge. I proceeded to attempt to plug in my PWR+ I7 replacement charger, and to my surpise the power button had lit up (the one on the palmrest/keyboard's surrounding area), and the power indicator (this one was white) and the battery indicator (this one was amber) were on aswell! I saw no signs of life from the screen, nor did I hear my fan, hard drive, or etc.. turn on as I tried to turn on my Ideapad. Furthermore, I tried using the Novo button, and used several reccomended methods of pressing the power button with and without the battery and/or charger, I don't know whats wrong with my laptop! I am capable of assembling and disassembling the system, as I have done it before, but what should I do in this case?

Read other answers

After my friend's laptop wouldn't run on battery power OR charge the battery I tried many "fixes."
Shockingly none worked that I found.
Only one thing worked for me to my surprise.
A last ditch effort was to open up the laptop (sony pcg-81114L) and disconnect the cmos battery for a few minutes to reset the CMOS.
To my surprise, when powered on, the battery instantly showed it was charging AND when removing the power plug the battery POWERS the laptop now! (and I'd thought I was wasting my time.)
Worked with an off brand battery also.
Many times this has saved many computers that have odd "unsolvable" things wrong with them.
Surely someone else has done this also but I haven't seen it posted anywhere to my knowledge.
Thank GOD for bringing the idea to remembrance!

A:sony vaio won't charge battery or run on battery power (CMOS BATTERY FIX!)

Hi askfault,
Do you have any information on how this fixes the battery problem? would be interested to know.

Read other 1 answers

When I plug in the AC adapter (and I've tried several) the battery indicator LED rapidly blinks green. No fans, no CD drive or hard drive movement. It's just DEAD.

The 30 second power button trick did not help and Google didn't tell me anything about the flashing green plug LED.

Any suggestions? Thanks!

Read other answers

My battery was dying. I tried calibration, letting the lenovo run just on the battery. It looks like it went down to 0%, then shut off. But it wouldn't charge. It was probably never charging in the first place, always running off the power of the AC.  But I could still boot to AC. So I bought a new battery. It said to calibrate. So I tried that. The battery ran down to maybe 20%, then shut off. But the same result. Laptop will neither boot nor charge the batttery. Again, it will boot just fine with the battery out.  So, what's to be done? Also, I tried to get into the BIOS via F2 and F12, but that doesn't work either.  - Dan  

Read other answers

Hoping this problem will be noticed by more people, the original post on this issue came from:https://forums.lenovo.com/t5/Linux-Discussion/T470-Linux-Power-Bridge-wrong-discharge-order/td-p/365...https://www.reddit.com/r/thinkpad/comments/63odjr/t470_battery_order_question_internal_discharges/ Brief description: same problem with OS including Win 10, Ubuntu 16.04, Gentoo etc. The internal battery always gets discharged first regardless its remaining power, which is generally harmless but seems not so good for the internal battery life. With my own T470 machine, updated with the latest 1.29 BIOS, this problem remains. According to searching results online, this little bug came with early versions of X's and T' including T460. PS: this issue had been successfully fixed with T460 via BIOS update 1.26, hoping it would be fixed with T470 sooner or later. Best regards. 

Read other answers

Hello everyone,
I have been having a problem with my laptop recently. A few weeks ago my laptop turned off, and wouldn't turn back on. I did some googling, and found suggestions to remove the memory, SSD, and CMOS battery, wait, then put them  back in and try again. When I did that, it didn't work the first few power button presses, but then it turned on. It has been consistent like that. I have the battery out, and on AC only, when I remove AC and CMOS battery, then plug the AC back in, the laptop will boot after hitting the power button a few times.

Any suggestions?

Read other answers

This started a few day ago and so far as per now i charge it almost every after 2hours but with 45% still remaining on battery.

A:My dell latitude battery shuts down at 45% of battery power remaining and on plugging it into ac, it starts from that same % so am not sure of what is happening to it.

Thank you for writing to us!
Kindly boot the system into BIOS and check the battery health and Ac Adapter.
Also private message the service tag and email address.

Read other 1 answers

The battery light is blinking white. It says that the power source is plugged in, but the battery is not charging. I've run a battery test and it came back as passed/ok. Any help is greatly appreciated.

A:Battery Light Blinking - Power Source Plugged In, Battery No...

As we have properly undertsood your issue you are facing issue in battery issues: Please read this information if you can : Common causes of the error plugged in not charging can be because of the following: Faulty charger. Some chargers supply power to charge the batteryseperately for the power to run the laptop. Nitin singh guleria  

Read other 3 answers

So, I had opened months ago a thread here about the short battery time with the T470P. I got my hands on the biggest available battery (72Wh), but still manage, even after a gauge reset, to get around 5h battery time, only using Firefox, and minimal Words/PDF. All on POWER saving mode. What's going wrong with the T470P that it wont even reach half of its promised 12h battery time? (I know those are Airplane mode numbers, but 5h is a joke compared to those)

Read other answers


Vista is retrieving me the error message that it is not able to retrieve the power parameters.
Do i need to install a softawre to allow me to access those parameters ?

Thanks for you feedback,



A:Battery - Vista is not able the retrieve the power options for the battery


To be honest I have no idea what you are talking about.
The Vista power options are a part of the Vista OS and you don?t need to install anything.

But on Toshiba notebook the Vista power option would be extended by some Toshiba power options.
Are you speaking about this Power Saver options?
If yes, then I would recommend reinstalling the VAP (value added package) because these power options are a part of VAP.

Read other 2 answers

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

Read other answers

This problem occurred with prior Win 7 Home O/S, so I upgraded to Windows 10. Heavens-to-Mergatroid!  This laptop runs just fine when only battery is powering it.  However, once I also plug in the power cord, the O/S does a hard crash within 1 to 3 minutes. How special! I can get about 2.5 to 3 hours when using the battery, but not if I also plug in the power cord.  That means that when the battery gets low I must perform a standard shutdown and then insert the power cord which recharges the battery if I don't turn  on computer.  If I then start the computer with both connected, it crashes.  I am not patient enough to live with a computer that has to be recharged every couple of hours.  HELP! I suspected a heating issue, so I took the back panels off and thoroghly cleaned the fan vents and other cracks and crevices using canned air, but this did not fix the problem.  Since in runs just fine on the battery, I deduce it is NOT a heating issue, neither dust or heat paste issues.  (I also used a cooling mat to no avail) Im 70 years old living in God's waiting room, but parts of my body are 18 to 30.  However, I do have "Essential Tremors" in both hands so I cannot do a full laptop disassembly even if I want to, which I don't.  I cannot afford to pay a computer repair shop $100 or more to try a fix this vexing power issue.  Other than hocking my car (it's too old also) to buy a new laptop, does an... Read more

Read other answers

I have just purchased an x1 carbon i7 5th Generation. I am experiencing a strange issue.Laptop will not switch on if on Battery although the battery is 100% charged. You need to plug the power on and then the power button will respond. You can remove then the power source (USB C) and the laptop responds fine to restarts etc on Battery and can start up again. As long as you leave the laptop for more than 10 mins powered off (not plugged in) then the power button will not respond again.Tried holding the power button in for hard reset or pressing the reset button under the laptop with no Luck. The only way to get the laptop back to life is to connect it to the power adapter and then Power Button will respond fine and you can work on battery. I have done all the latest updates, bios, drivers etc... but still no luck. Since the laptop is only 1 day old... unless a solution from this group I will be returning it to the supplier on Monday Morning. Thanks 

Read other answers

Over the last few months I noticed that the battery meter on my Dell Inspiron E1505 laptop was blinking red to green and back... so having had this laptop for several years, I assumed that I would need a new battery soon. The adapter power cord was also beginning to lose some of its covering near the plug in site so I ordered both a new battery and power cord. (That was about 2 weeks ago).

Upon receiving my order, I was very pleased to see that when I installed the new battery and new cord, the battery already had some charge (I didn't note how much). I felt relieved to have my mind at ease that all was now well with my computer. (little did I know that I'd be needing help less than two weeks later!).

Important note... I very rarely use my laptop without the power cord... (past experience proved to be frustrating because I always needed more time than the battery provided.)

I've probably only used the laptop "on battery"... a few dozen times over the last 3 years!

Now... I am in a dilemma!

Yesterday, I took the laptop with me out of town when my husband and I did some real estate hunting.
Instead of using the laptop on battery... we had it plugged into a special power converter for use in the car. I noticed that whenever we stopped and turned off the ignition... the laptop would lose it's power immediately, and as we resumed our travel... I'd have to restart the computer... and there would be the "black & white" warning... Read more

Read other answers

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

Read other answers

I have a T460s with 2 batteries per the attached status.  Battery 2 is discharged first, then battery 1. Issue: When battery 2 depletes, instead of switching over to battery 1, the laptop powers off without warning.  Just... POOF.  I have updated BIOS and am running Windows 10 Pro. BIOS is at N1CET58W 1.26 I have Lenovo Vantage loaded, but when I run it to check for updates, none of the 'System Update' buttons results in any action being taken.   I have done some searching but have not found any information on why the switchover from Battery 2 to Battery 1 would cause an instant power off. 

T460s_battery2.jpg ?28 KB

Read other answers

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. 

Read other answers

Hello, this is my second post on this website; and I hope I'm posting in the correct category.

Here's the problem I'm having and I hope someone can help.

I've just repaired Windows XP and its now booting up great!, however, the battery icon (in the bottom left) has a symbol, the icon showing is a "plug" as if my laptop is plugged in and it never shows how much battery life I have, weather my laptop is plugged in or not. I know my battery isn't failing or is damaged because I checked it with another hard drive that has windows XP (and with Dell Diagnostics) and the battery icon shows up normally (i.e. showing me how much battery life I have left).

I've been reading up on this and I think Windows XP's "Power Manager" thinks or act as if I'm on a Desktop when I"m on a laptop. Please Help! lol

A:Windows XP Power Icon Battery Power Status Not Showing

Hello -Did the battery Icon ever work when you were in "Malware Removal" forum with Elise ??Please list your Dell model -Thank You -

Read other 9 answers

my Lenovo Y400 is facing a problem. The battery is charging, but when unplug the power cord, the laptop lose all power and off. i thought battery problem but after replaced, it is still the same.Seems like the laptop just won't draw power from battery. i suspect i overheated parts of my laptop, since the left speaker which is near the heat exhaust not sounding well.The power plug point is also at the top left side, i wonder will it have anything to do with not getting power from battery?or are there other possible cause?

Read other answers


Am new here but long-time Windows uses since Win95.
Currently have a DELL E6530 and it gave me a BSOD Event 41 Error while on batteries! Looking around Google and other forums, this transpires to be a PSU related problem, but it's a laptop, and was running on batteries at the time the BSOD happened. System was idling at the time. Running Win 7 Pro 64, as supplied by DELL.

Thanks in advance for any input...

Kind regards

A:DELL E6530 Event 41, Kernel-Power on battery power

Follow the instructions here: Blue Screen of Death (BSOD) Posting Instructions

Without dump files, nobody can help you as to the cause of your shutdown.

The kernel power event ID 41 error occurs when the computer is shut down, or it restarts unexpectedly.

Read other 1 answers

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

Read other answers

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?



Read other 1 answers

Hi. Im new on this forum, but I have a problem with my Inspiron 1545 laptop from Dell pre-loaded Windows 7 Home Premium 64-bit (although I did re-install several times with OEM OS restore disc). Money is tight for us now, so my AC power jack on the side of my laptop (or the end which connects to the jack) is damaged. I don't know what it is or how serious it is. Once for a while we had to protect the cord from slipping out using duct tape. The only thing I really know is that the coded white rim on that end of the cord, a very small part of it is chipped. And my battery needs replaced, do I need to still fork over an expensive sum for a brand new one?

A:Broken AC power jack, no battery power, help

Hi CSean and welcome to SF
As I understand it, it's not the Laptop-side of the connection that's broken right?
In that case you might find this link helpful:

Amazon.com: Replacement Plug for Dell Inspiron 1525 1526 1545 Laptop Ac Adapter: Computers & Accessories
Granted those aftermarket replacements are not necessarily in the same quality as the original parts.
You often trade off quality for price.
These seem to be original parts (for 3-6x the price as it seems):

Hope it helps you further

Read other 5 answers

I purchased a Lenovo 110S a week ago. I?ve found that I have issues turning it on sometimes whereby the power indicator flashes a few seconds but the laptop doesn?t power on. This happens with enough battery power, for example it?s happened when I have had 50% battery power remaining. I plug the laptop into mains AC power and it will then power on.  But im stumped as to why this doesn?t happen all the time. If anyone can offer help it would be appreciated! PS: my battery is a concealed one ie; in the laptop casing with a cover that?s screwed on.

Read other answers


My hp laptop had its battery flat for 12 hours. After that the laptop can nolonger boot up or charge. Please help

A:HP laptop cannot boot up or charge battery after battery went flat for 12 hours

What is the model of your laptop?

Read other 6 answers

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.

Read other 1 answers

All, Very strange thing going on, and I've not seen it on these forums, so here I go. Turn on laptop, the HP screen appears, and about 20 minutes later, Windows starts loading.Turn off laptop, pull the battery, turn on the laptop, and Windows starts loading within 10 seconds (normal). When the battery is in, EVERYTHING takes 15-20 minutes to start.  If I select F2 for settings, it takes that long.  If I hit F10 (or possibly F8), same delay.      If I take the battery out, it works perfectly. So....I of course assume bad battery......but I've never seen this type of behavoir in ANY computer previously. Any suggestions?HP G62-340US Notebook Windows 7 Home PremiumNo error message and no changes made to system. Thanks Donlen

A:HP G62 Battery causes slow boot - take battery out and boots...

BTW - I've noticed other things like "Failed DST" and things like that...but only when the battery is installed. When battery is out....passes all diags.

Read other 5 answers

I bought the laptop used. it appeared the battery wsdead. I bought a new battery. The battery would stay at 53 percent and when i would unplug the charger it would immediatly shut off. i troubleshooted in the device manager and reset the laptop. Nothing happened. I reset a second time and the battery was charging and the laptop would run off battery power. this soon stopped working. I continued to troubleshoot. i got it to charge again and run off battery power but now it will again not run off battery power. the battery is now at 74 percent so i know at some piont charging was happening. this is very frustrating. Iv built a gaming pc jst recently and i feel like i should be able to figure this out. Any help would be much appreciated.

Read other answers

Need a battery/power charger for CHromebook, does anyone know where I can get one? 

A:Help!! Anyone know where I can get a power/battery...

Hello, Could you give me the first ten characters of the computer serial number (S/N)? Only the first ten.

Read other 1 answers

I'd like to run my P50 without my battery in it since I usually use it in the same place with the AC adapter plugged in.I've so far been in the habit of having Airplane mode auto-detection enabled so the battery gets 'exercised' and when it gets low I turn it off to power the battery again. But I'd rather just not have the battery in.  So I took the battery out and the P50 loaded up fine, for a sec.  After loggin in Windows it did a hard shutdown.  I tried to power on again and what happens is the keyboard lights up for a split sec then nothing.  So it's like it's trying to power up but can't.  I looked for a BIOS setting and found one about an AC feature but that didn't make a difference.  This seems like odd behavior to me, but still feel like there's a Lenovo specific bios feature somewhere, or at least I'm hoping so.

Read other answers

I have an acer 4730z, with windos xp program. My problem is that when i plug in the power cord it does not charge the laptop battery, both the battery and power cord are
replacements for the original part. Also green light on front of laptop blink when power cord in plugin. I am not that computer savvy

Read other answers

I have a compaq presario laptop model 714 NR vista os, Battery is fully charged but the computer will only run on AC when i unplug the ac power cord pc shuts off instintly, i tried removing the battery and doing a hard boot says battery is 100% also tried another new battery . pc just wont start or run on the battery runs just fine on the ac adaptor
Any ideas
Thanks masonman

Read other answers

Using WIndows 7. Never experienced this before. I always operate the pc on electric, never on the battery if I can help it. Last night I had a big blip that showed up on the screen telling me that to lengthen the life of the battery, I needed to change my power. It gave me 2 choices - one was Dell recommended. No explanation so I chose the "recommended" setting. Once I did, I discovered that even though I was still plugged in, my taskbar showed me operating on battery. When I opened the pc today, it was still on battery even though it was plugged in. Later in the day, it automatically switched over electricity. I'm assuming this is the way it's supposed to work but I've done searches on Power Settings etc. and if I wanted to revert back to the way I was using the battery I can't find it. I even did a "restore" and it didn't change. Where do I find the setting that refers to this selection?

A:Battery Power

Hi dianerowley,
My name is Krishna and I work for the Social Media and Community Team at Dell. It appears that the power plan has been changed to "Balanced" or "Power saver". Try changing it to "High performance" and see if it that works.

For this, open Power Options by clicking the Start button Picture of the Start button, and then clicking Control Panel. In the search box, type power options, and then click Power Options. Under Select a power plan, click Show additional plans, and then click High performance.

Dell-Kris K

Read other 2 answers

I'd like to run my P50 without my battery in it since I usually use it in the same place with the AC adapter plugged in.
I've so far been in the habit of having Airplane mode auto-detection enabled so the battery gets 'exercised' and when it gets low I turn it off to power the battery again.
But I'd rather just not have the battery in.  So I took the battery out and the P50 loaded up fine, for a sec.  After loggin in Windows it did a hard shutdown.  I tried to power on again and what happens is the keyboard lights up for a split sec then nothing.  So it's like it's trying to power up but can't.  I looked for a BIOS setting and found one about an AC feature but that didn't make a difference.  This seems like odd behavior to me, but still feel like there's a Lenovo specific bios feature somewhere, or at least I'm hoping so.

Go to Solution.

A:P50: No Power without battery

Thank you for sharing your experience that when the battery is removed from your P50 ThinkPad and set in airplane mode, the system is unable to run the system on AC power.
The reason this setup does not work is because when Airplane mode is enabled, the 135W AC adapter acts as a 65W AC Adapter by design. Since the P50 requires more power than 65W, and expects to make up for that in Airplane Mode from the missing battery, the system will fail to power on.
Here is a Lenovo Service TIP that discusses Airplane Mode: https://support.lenovo.com/us/en/documents/ht100574
Thank you,

Read other 2 answers

I turned on a Philips 15nb57 series Model No EAA-89, but my battery died on start up and I didn't have time to put the power cable in.

I then switched on laptop again and the following error came up,‘Windows Error Recovery, windows fail to start , recent hardware or software installation may be problem'


'Do you want to start windows normally or go to recovery?

Recovery mode
Start repair environment (doesn’t do much)
Reinstall windows
Adv options
Exit and restart'
Do you think I have corrupted the Bios and need to get a external floppy drive (or flash drive) to reinstall it?

This is a friends computer who had support from the 'tech support' recently,they took control of her 6 yr old laptop to install a small program to fix a wireless printing problem. hopefully not related.



A:Windows won't boot up, battery died whilst booting up now won't boot up

Read other 6 answers

I have a problem! who knew. When I have the battery installed in my gateway M505 my computer only runs at around 600-800 Mhz. It's built to run at 1.4G, which it does, BUT only when I remove the battery. Here's the thing that ticks me off, the battery is reading 0% in power settings utility in XP. So I run the comp off AC with the battery installed. I expect it to run at normal power settings. Also the battery charge indicator will not come on when I have AC power hooked up. My drivers all seem to be right, but there has to be a problem here somewhere. I already have a new battery on order and on it's way, but how I get the comp to run at 100% CPU power while on AC with a battery installed. And is there possibly a problem with the laptop that's causing the battery to not charge?

A:Battery and AC power settings in XP

You may need a BIOS uodate to fix APCI.

Read other 3 answers

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

Read other 14 answers