Batteries are the embedded power-source of a component such as a notebook. It is composed of cells of chemical elements that store energy.

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244 views

Removing support for Lenovo's Battery Safeguard “feature”

Lenovo laptops now include a Battery Safeguard "feature" that disallows use of third-party batteries in models made after May 2012 or so. It appears this "feature" is provided by a Windows driver as ...
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1answer
60 views

ASUS Tranformer 101G won't charge, but USB connection works

My ASUS TF101G tablet has suddenly stopped charging. If I plug it into the wall (dock+tablet), it won't charge. I tried plugging just the tablet into the wall, it won't charge. I tried just plugging ...
1
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0answers
843 views

Dell Inspiron laptop not starting

I have a Dell Inspiron N5010 dual booting Windows 7 and Ubuntu. It was running fine earlier, but suddenly it started mistyping letters with multiple letters and special characters for one second and ...
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0answers
43 views

System can't boot and start

When I updated my Windows 8 to Windows 8.1 my battery got submerged. Now the system can't start and it can't boot CDs. When I start the system it says: ...
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0answers
249 views

Disk spin down in Debian Wheezy [closed]

I'm using Debian Wheezy No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 7.3 (wheezy) Release: 7.3 Codename: wheezy $ uname -a Linux debian 3.2.0-4-amd64 ...
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0answers
45 views

How to undo a failed SSD install

Yesterday, I tried to install a Kingston SSD that I've bought, in place of my Acer Aspire M5-581TG-73516G52Mss's "existing" 20gb SSD. There were a few issues, however: The laptop did not contain a ...
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1answer
537 views

0% available, Plugged in, not charging

I have been trying to fix it all morning. I did these so called "12 easy" steps, but it had no effect.... I also tried ATX resed, whatever that is. It was suggested in one of the answers in this site. ...
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2answers
68 views

What does “Fully Charged” really mean in Windows

When Windows says "Fully Charged", does it stop charging the battery and start using pure AC power? Or does it keep using battery but the AC keeps charging it? Or does it do something else?
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21 views

Software to manager battery recharge [duplicate]

I have one Hp SleekBook 14-060BR and I have one ThinkPad SL410, so in Lenovo have a software to manage the recharge the battery, to don´t recharge when comes in a level o consuption, I found this ...
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1answer
383 views

Laptop crashes when plugged in on AC and battery fully charged (Toshiba Satellite A300-1IW)

My laptop is a Toshiba Satellite A300-1IW (model no PSAGCE-02000VFR). From several months it was crashed suddently when I used it on windows 7 or Xubuntu. Today I notice that the laptop is apparently ...
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2answers
1k views

circumvent BIOS password on hp compaq nc8430

I've been trying to find a solution on google. However most (if not all userful)answers to the question "How can I reset or circumvent the BIOS password" on my Hp compaq nc8430 end up with "try ...
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1answer
35 views

Wireless Internet connection not available in Windows 8

My laptop brand is ASUS, a few days ago the wireless connection was still working. This morning I pressed the power button and it did not start. I tried to take out the battery (my laptop is 2 ...
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1answer
180 views

How do I improve battery life under Linux?

I have Sonny S series laptop(Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz) with Debian testing on it with 3.10-3-amd64. I love Debian Gnu Linux, everything is great except that the battery life. I have ...
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votes
3answers
2k views

What would cause a Dell Latitude d630 laptop battery to fail to charge?

I recently purchased a Dell latitude D630 from an acquaintance. It came without a battery, but I bought one from Amazon to replace the missing one. However, the battery refuses to charge. I cleaned ...
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4answers
2k views

ASUS N550 laptop not charging on ubuntu after updating kernel

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 ...
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1answer
93 views

Laptop will not power from battery

I have an Acer Aspire 7551G that will not power from battery, the AC adapter must be connected for the machine to boot and as soon as the adapter is removed the laptop instantly dies. The contacts ...
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0answers
76 views

(Dis)connect laptop to/from AC through software?

Contemporary laptop (lithium-ion) batteries come with a bevy of guidance on extending their lifespan. The usage advice is particularly frustrating. You’re not supposed to drain them below ~3%, but ...
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2answers
414 views

Battery is getting drained very fast

My laptop is approx. 18 month old. I have changed the internal hard drive recently and I have Ubuntu installed on the system. The problem is my laptop's battery is draining very fast. When it ...
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1answer
120 views

Debug and fix stuttering system

I have a notebook, Fujitsu Amilo Xi3670 Notebook: Fujitsu Amilo Xi3670 Processor: Intel Core 2 Quad Q9000 Graphics Adapter 1: NVIDIA GeForce 9600M GT Graphics Adapter 2: NVIDIA GeForce 9600M GT ...
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1answer
143 views

Battery indicator can't refresh battery state

I have a samsung np550p5c series laptop. I'm running a win7-ubuntu dual boot which I've recently set up. And my small problem is as follows: The battery indicators in both OSs seem to be unaware of ...
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0answers
41 views

How to enable battery indicator in HyperV guest OS?

I am running Hyper-V on my laptop, and I work in a virtual machine most of the time. How do I enable the Windows battery indicator inside my guest OS?
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1answer
199 views

110v - 220v at USB charging [closed]

During my stay in the US, I bought a bluetooth wireless water restistant speaker that works with a 500 mAH UL listed battery and as it's manual states, it can be charged "using any USB port", ...
0
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1answer
120 views

Is there a correct way to connect the AC charger to a laptop?

I want to know if there is a correct way attach the AC charger to charge a laptop's battery. Should I plug in the charger to the power source and then to the laptop? or... Should I plug in the ...
0
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0answers
63 views

Computer shut down even when it is on AC & battery

My laptop is around two years old. I first receive a message to replace the laptop battery a few months ago. I therefore took out the external battery and powered the computer with AC. But it started ...
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3answers
48 views

Using a laptop as a server

I've got a windows 8.1 laptop (Dell). I need to configure it remotely over the next few weeks (I'll be out of the country). I'd like to have it running 24 hours a day as a server, to do this. I'll ...
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0answers
387 views

Battery life Samsung Series 7 with Linux (Mint, KDE)

I've been trying all the tricks I can find to reduce power usage on my Samsung series 7 (Ivy Bridge Core i7, AMD Radeon HD 8570M GPU) laptop (running Linux Mint Olivia, KDE version), but it all seems ...
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1answer
330 views

Why is Crunchbang saying my battery is at 64% after I unplug it from charging?

I have a weird problem with Crunchbang and it battery monitor. When I plug it and let it charge it'll tell me "Your laptop is fully charged", but when I unplug it it will immediately discharge to 64% ...
2
votes
3answers
3k views

Disable automatic shutdown on low power Win 8.1

I've been having problems since I upgraded to Windows 8.1. My battery has been having issues as its getting old, and it always says its at 0%, while in fact I can still use it for about 2 hours. This ...
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0answers
82 views

Trying to run computer off DC but monitor is always blank

I am trying to get a computer to run off a DC battery. The computer seems to start fine (the CPU fan spins and the hard drive whirs), but nothing displays on the monitor. It just stays blank, as if ...
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2answers
629 views

Why do laptop chargers need such a large transformer? [closed]

Cell phone chargers need a much smaller transformer, usually ones that sit on the wall. Lamps cords don't need any transformer. Why do I need a giant brick in the middle of my laptop charger?
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1answer
267 views

Laptop charging reminder utility [closed]

My ASUS Windows 7 laptop naturally tells me when the battery is getting low. But I like to keep it charged whenever possible, and sometimes I forget to plug in. Where is a simple ...
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0answers
101 views

“Plugged, in charging” - but its not charging

I have an ASUS laptop and my battery although at 52% and charging it's not actually charging and if I unplug the power cord it will shut down. The problem cant be software related since even in linux ...
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1answer
44 views

Battery: uncharging?

I have a Lenovo Laptop (G470). My OS is Ubuntu. Five minutes ago my computer said that only two minutes were necessary in order to have the battery fully charged. Right now the indicator says that I ...
4
votes
6answers
13k views

Laptop screen turns off on removing power cord

After a recent upgrade to Windows 8.1 Pro from W8, my laptop's (an ASUS X54H) screen turns off as soon as you remove the power cord. It turns back on with no issues when you plug the power back in. ...
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1answer
138 views

Laptop screen dimming

On my laptop, when I press the Fn keys that dim the screen - is Windows doing the dimming, or the hardware? Are if it is the hardware, would using software to dim it further improve battery life?
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0answers
672 views

It seems Windows 8.1 killed my two T60 laptop batteries

Upgraded Windows 7 to Win8 earlier this year, and last week upgraded to Windows 8.1. (Lenovo T60) Had no problem with battery usage when on Win7 nor Win8. After about a week of Win8.1 on my system, ...
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votes
1answer
335 views

Windows 8 clock keeps stopping and needs to be reset

I have a PC with Windows 8. In the last 2 days I have set the clock (the one which appears at the right bottom corner of the desktop) twice, as it paused on a certain hour and (Maybe the hour before ...
3
votes
3answers
4k views

How can I limit battery charging on a Surface Pro (2) or Windows 8(.1)?

Limiting the maximum amount that a battery can be charged extends its life. Historically, utilities for this have been provided by the manufacturer (i.e. on Sony and Lenovo). Does Windows 8 or 8.1 ...
2
votes
3answers
163 views

Fixing poor battery life on Windows laptop

I am a college student and I use my laptop in lectures to take notes or (in the event of a boring lecture) work on assignments for other classes. With only vim and a web browser open, I still only get ...
4
votes
1answer
264 views

Windows 8.1 idle/auto maintenance runs on battery

Just recently upgraded to Windows 8.1 from Windows 8. I noticed that, when on battery, idle and auto maintenance tasks run regardless of the power situation. Curiously, I looked in task scheduler, and ...
0
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0answers
698 views

Laptop won't turn on after it was shut off. Is it dead?

I'm currently I'm using my laptop without battery because my battery was dead. I didn't buy a new battery because I don't have a cash for now. Since then sometimes I accidentally unplug or sometimes ...
0
votes
2answers
529 views

Samsung Laptop cuts out at 37% battery life

I use a Samsung i5 (I think, I'm nowhere near the box to check specifics) laptop purchased summer of last year, running Windows 7 with a Quad core and AMD Radeon graphics. I'm pretty gentle with it, ...
1
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1answer
72 views

Why was my laptop unable to turn on?

I suspended Ubuntu on my laptop, and then carried it in my backpack to another place. Then I found that the laptop was off instead of being suspended. I couldn't make it power on either, even with ...
0
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1answer
95 views

Laptops and batteries left plugged in

What kind of batteries can be left plugged in and not suffer any side effects such as less battery life or exploding? I was told some laptops and even some apples can be left plugged in continuous ...
2
votes
3answers
4k views

charging a phone via a laptop which is also being charged

Suppose my laptop and my smartphone are both at low battery level and I want to charge up both. I start charging my laptop, and I also connect the phone to the laptop using the usb cable. Is this ...
5
votes
3answers
2k views

Is my UPS battery dead or is my UPS broken?

When the lights went out today I noticed my UPS battery didn't work. I checked the monitor and this is what I see: As you can see it says the battery has 90% but when I pull the plug, it doesn't ...
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3answers
492 views

Can I charge my nexus 4 with a USB port meant for pendrive in my car using an FM transmitter accessory(it has a USB port for pendrive) [closed]

My point is Nexus 4 needs 2.2 Amp for charging properly however the unrated USB port on FM transmitter will not be providing that much current as it is meant for a pen drive. When I connect it to my ...
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votes
3answers
2k views

Toshiba A100 laptop battery wont charge wont run on ac power for more than few minutes..then shut down

my Toshiba A100 laptop battery seems to charge when not switched on but pretty much as soon as windows loads it then shows battery dropped down to 7%, then 3% then just shut downs...it then "charges" ...
0
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1answer
305 views

Can the battery in a Samsung 500T Tablet PC be replaced?

Can the battery in a Samsung 500T Tablet PC can be replaced by a user?
1
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3answers
151 views

Achieving fast boot, encryption, and battery health on a Mac portable [closed]

My current computer is getting old and I'm going to switch to a Mac when I replace it. I'm looking for a setup that has these properties: Turns on as quickly as possible I still have a usable ...