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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How to pass parameters to a Linux kernel with grub?

I have posted the question "Kubuntu 12.10 laptop battery dropping fast" and there i have received the answer as accept As advised on another Stack Exchange forum, the procedure to accomplish an ...
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1answer
5k views

Dell Laptop Battery Not Charging?

I have a Dell Vostro 3555 and recently I noticed that my battery is not charging at all. I see this message when I boot up the computer: The AC power adapter type cannot be determined. You system ...
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0answers
50 views

How can I confirm my new notebook battery is genuine?

I have just purchased a replacement for HP DV6 Pavilion laptop battery from a local store in my country. I am not sure that the battery is genuine. How can I check and confirm that the battery is ...
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1answer
79 views

Laptop Power not going through [duplicate]

I have a HP dv5-1000US. Just now I faced a peculiar situation. Normally when I plug the power adapter cord, the LED at the power input socket (on the side) stays completely on and so does the power ...
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2answers
398 views

Battery Charge Suddenly Drops from 54 % to 7 % [duplicate]

I own a Lenovo B 570 series laptop. The laptop and battery being an year old lasts only 1 hour. But the strange thing is that, when the charge comes down to 54 % it drops to 7 %(critical battery ...
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2answers
216 views

HP Pavilion battery charging “bolt” LED light flashing at 82%

A few days ago, my HP Pavilion dv-1413us battery charging "bolt" LED light started flashing and it would not charge the battery until full (stops at 94%). I unpluged it and used battery, and now it ...
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2answers
2k views

Dell laptop dies when unplugged but the battery appears fully charged

To expand on what I mean, I checked the voltages of each cell in the battery pack and they each read about 4.0v ea (6 green Li-ion cells in a 11.1v 53WH battery) and the total voltage reads 12.4v. At ...
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2answers
431 views

Does a laptop run hotter when running off the battery?

This morning I noticed that my laptop fan was cycling on and off faster than normal.. then I noticed that I had forgotten to plug in the AC charger. Is is possible that running off a battery makes ...
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1answer
198 views

Prevent i7 from overclocking while on battery

I've been bringing my laptop to tutorials and lectures lately and I've noticed sometimes my CPU clocks up from 1GHZ to 3.2 GHZ which cuts my estimated battery life in half, and spins the fan up pretty ...
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1answer
370 views

In a laptop with both an SSD and a HDD, is it still worth it to pay for 7200 rpm rather than 5400 rpm? [closed]

I am getting a laptop (Gigabyte u2442f) with two drives: a 250 GB SSD I'll use for the filesystem root, and a 750 GB HDD I'll use for home/. For the HDD, I have a choice between 5400 RPM and 7200 ...
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1answer
263 views

When should I charge my laptop? [duplicate]

I was wondering how often should I charge my laptop? I have heard that using my charger plugged in will cause the battery to heat up and reduces battery life. Thus I've decided to stick to using my ...
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1answer
725 views

Is it safe to keep the Asus notbook plugged in to AS power while working? [duplicate]

I sometimes work the whole day with the machine. at that time, I keep my lap plugged in the the ac adapter and work with the machine. when im done, i remove it. People say its ok to do this because ...
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1answer
145 views

Laptop getting shutdown / run by battery after 10 minutes

Laptop is getting shut down after 10 minutes while it's run without battery - but with battery as well as plugged in it runs first 10 minutes by power then automatically runs by battery until the ...
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1answer
29 views

Battery ratings for HP Laptops

I have a HP DV4 1412TU laptop purchased in india. Now my concern is can i replace my laptop battery of 10.8 v 4200 mAh and 47wh rating with a 10.8 v 4400 mAh battery? Will it affect my laptop's ...
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2answers
1k views

Laptop battery software to disable charging AND battery usage

I'm going to buy a Microsoft Surface notebook that does not have the capability to easily remove the battery. I'm also going to be near a powerpoint for around 90% of my usage of this notebook. To ...
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0answers
117 views

Laptop: Replaced/Tested all power components, still won't charge

I'm a computer technician, so please avoid the obvious diagnostic suggestions - info provided. I'm working on a Compaq Presario CQ40. Originally, the battery would not charge or run off ac adapter. ...
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1answer
629 views

Optimizing battery life for ThinkPad T430u in Xubuntu

I recently purchased a Lenovo ThinkPad T430u, and installed Xubuntu. I've noticed it has poor battery life. How can I optimize the battery life? Is this a problem with the desktop environment, or ...
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0answers
187 views

How do I change power settings on my laptop to hear audio while running on battery?

I have a Lenovo ThinkPad with Windows 7. I can hear sound when my laptop is powered up on AC power. While on battery power I can not hear streaming media, such as YouTube. I was informed that I ...
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1answer
50 views

can I increase the power going into my laptop

I have a gaming laptop (acer aspire timelineX). I'm having trouble when I play any graphically intense games(guildwars 2). I set the settings all the way to low and after a short while I will get the ...
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1answer
203 views

Windows laptop cannot detect battery

I have this sony laptop about 6 years old. The battery lasts about half an hour or less. Now all of a sudden it cannot find the battery at all. The battery icon shows a red cross says No battery is ...
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1answer
198 views

Toshiba Satellite plugged in not charging

I have a Toshiba Satellite that has vista installed on it. It's 3 years old and the battery lately hasn't been working very well. Recently though, I've had a problem of the battery indicator saying ...
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1answer
264 views

Toshiba Satellite battery indicator saying “plugged in, not charging”

My Toshiba Satellite with Windows Vista is a couple years old. The battery lately is completely shot. Even after charging for a long time, it barely lasts five minutes when you unplug it. I'm assuming ...
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2answers
345 views

Does depleting the battery completely do damage to it?

This question applies to laptops, but also to smartphones or anything that's battery based and rechargeable. Does depleting it completely (Computer won't even turn on, or turn on but shuts down ...
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1answer
101 views

Put and remove laptop battry while working

When I work on my laptop I remove the battery and work on AC power, but some times I want to move the the lap while its on I was think of putting the battery then remove the AC power, and when come ...
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1answer
1k views

Is it normal for a battery to discharge when the computer is off?

My wife has a Toshiba Satellite M500 laptop. It's running Win8 off of a fresh install from the DVD. I've set it to hibernate fairly aggressively in an attempt to conserve standby battery life, but ...
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1k views

Reset laptop battery data or interface battery chip?

My battery consists of 5 parallel strings of 2 cells in series. One conductor broke and therefore the measured capacity of the battery decreased dramatically, so that the capacity meter went down a ...
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1answer
426 views

How do I Display Message on Vista when Battery is Low?

I use Vista, on a laptop, but when the battery is low or critical it doesn't display a message or a sound, it just craps out. I read somewhere that the whole not-sound-playing is by design!?!? ...
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1answer
471 views

Does more battery and higher processor affect on battery life?

I'm planning on getting a customized macbook air 13" .. It says it should last 8 hours wireless browsing which is reallygood, but it didnt say whether on the default customization or anything .. So ...
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3answers
71 views

Laptop gets hot even when not charging

I have been using this Dell Latitude D620 for a while now. The system becomes quite hot even when I've not plugged it in. Anyone know what might be causing it & how I can reduce operarting ...
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0answers
2k views

Can a faulty battery cause my laptop to shutdown even on AC line? (battery installed AND plugged in together)

until recently I experience something rather annoying (and troublesome) with my laptop: it spontaneously shuts down itself without any warning, and restart right after that. No blue screen, no hanging ...
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0answers
70 views

Difference between batteries for Acer Laptops?

My girlfriend's Acer Aspire One battery is no longer working, and I am trying to find a replacement for her online. Her exact model is Acer Aspire One 533-23Dww. However, I have not been able to ...
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1answer
1k views

Acer Netbook dont see the Battery in the Power Meter in windows XP, how to fix that?

i have an Acer netbook AO756-2899. its not supposed to work with windows XP but i found out the drivers for windows XP on ...
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4answers
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Is it normal for a laptop to discharge to 60% when not plugged in and not turned on for 5 days?

I recently purchased a Lenovo IdeaPad Y400 and have noticed that after I do the following: Use the laptop while plugged in Shut down and unplug (it is fully charged at this point) Turn it back on ...
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1answer
95 views

How is battery charge reported to the operating system?

This feels like a stack exchange EE question, but it seems like it belongs here instead. How is the charge of a notebook computer's battery reported to the operating system? Since all laptop ...
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2answers
260 views

What can cause a sudden crash of a laptop on battery power?

HP Pavilion DM3 / Windows 7 My laptop suddenly goes black without warning, restart and it goes to "Start Windows Normally." Does not occur when plugged in to AC. I got a new battery and had ...
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2answers
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Mobile Battery Packs [closed]

Are there any mobile battery packs that exist that can be used to power phones and other mobile devices? Is there anything specific I should look for or know before buying and using one
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1answer
162 views

My laptop's battery is 46% worn - what can I do?

I've got an Asus Eee 1005PE "netbook" laptop with a 6-cell battery. The usage pattern has always been to let it drain down to 10-40% capacity and then let it recharge during the night. I realize ...
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1answer
180 views

Computer Serial Number - Secret? [closed]

Would there be any reason not to share once computer serial? Additionally same question regarding a battery serial? I am developing an online interface in combination with a little daemon running on ...
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1answer
965 views

Laptop forgets that it's plugged in while gaming

I just recently received a new laptop a couple of days ago and I've noticed that, whenever I'm gaming, the laptop spontaneously forgets that it's plugged in. That is, even though just a minute ago it ...
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0answers
315 views

Dell XPS M1330 BIOS upgrade adversely affects battery behavior

I upgraded from A11 to A15 using the executable M1330A15 (via DOS) and was successful. Before the upgrade, I left the laptop alone for several months. The battery showed 4 out of 5 pips when ...
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0answers
322 views

Battery charge percentage jumps from 100% straight to 93% [duplicate]

Possible Duplicate: Battery charge suddenly drops from about 25% to 6% Laptop shuts down when battery meter is relatively full. When I plug in and reboot, battery meter correctly says 1% and ...
2
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1answer
457 views

Why won't my battery stop charging?

I don't know why this is happening but this is a new battery. Details of which are visible in the photo. The problem is that even after the battery meter shows 100%, the power light on the laptop ...
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1answer
699 views

HP pavilion dv5 doesn't start with AC adapter

I'm experiencing a problem with my HP Pavilion DV5 laptop. It will not power on with the charger only. It did so before. It powers on with the battery, but the charger light on the side next to the ...
0
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1answer
161 views

Dell Studio laptop not compatible with charger (will turn on, not charge)

I have a Dell Studio 1558 laptop that won't turn on unless I plug in my charger. Right now I'm using a 65W Dell AC Adapter. My laptop will turn on, but give me a message saying that it is the wrong ...
3
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2answers
1k views

Battery plugged in, not charging

This is a new battery and this gives the problem of Plugged In, Not Charging for the past two days. I have no clue as to why this is happening. Sometimes it does, sometimes it does not. Battery Wear ...
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1answer
7k views

Asus laptop won't turn on

I think I ran the battery too low (I have one power cord that I share between two computers and I was stupidly trying to use both machines at the same time and lost track of how long this one had been ...
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1answer
353 views

Acer D250 netbook battery won't charge

The icon says the battery is 0%, plugged in, charging. Is in fact not charging. Tried a new battery, a new charger cord, updating BIOS, and downpowering and replugging the battery in repeated times. ...
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2answers
7k views

Hp primary internal battery error 601 at boot

I was using ubuntu 12.04 and a file transfer was going on when i saw the battery applet was showing 1 min remaining. I immediately shut down the laptop and when i plugged it after some time, from that ...
2
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1answer
89 views

CMOS Battery. Forgot to put it in

Well. I am a complete idiot. I had to replace my keyboard. And the only way to do that was to completely take it apart. While I was at it I was going to replace my CMOS battery. I took it out. Went to ...
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1answer
2k views

VAIO Battery checker caution error

I downloaded and Installed VAIO Battery checker a few minutes ago, now this error appears every now and then and I am unable to do anything. I don't know how to uninstall it, I didn't find it among ...