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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80 views

Can short circuiting kill a USB cable?

I have a power strip and four things were connected to it. My air filter, laptop, Samsung Galaxy Tab, and Motorola Droid 4. For the phone and the tablet, there are actually 2 components to the ...
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1answer
136 views

Battery recharge functionality broken due to short in AC adapter?

I have a problem recharging the battery of my netbook, an ASUS Eee PC 1025C. Since last week the LED of the AC adapter doesn't light up when it is connected to the wall. The netbook won't turn on ...
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4answers
443 views

Does battery life decreases when plugged in or overcharged? [duplicate]

My laptop is always plugged in when it is switched off and i many times forget to remove the charger.
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0answers
12 views

Battery detection issue

I have compaq presario cq40 model. Recently I purchased new original battery but while starting laptop with direct power supply battery is not detected & not getting charged. what may be the ...
0
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1answer
48 views

Acer TravelMate 253M, battery not being charged

I bought a new Acer TravelMate notebook 253M today. When the charger is connected with the laptop, it is on, or I can switch it on, but it always shows the battery is empty or cannot find the battery. ...
0
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1answer
245 views

How to initialize a lithium-ion battery?

I just bought a lithium-ion battery for a Lenovo ThinkPad T61, and frustratingly it displays being able to charge only at 91% of its design capacity (65.16 Wh out of the designed 71.28 Wh). ...
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1answer
333 views

Bad Clock Battery on an HP Probook 4525s

How can I tell if the clock battery is bad in a HP Probook 4525s? My PC does not start when pressing the power button but the caps lock light flashes twice.
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1answer
69 views

Laptop won't boot without power cable connected

My laptop is an Acer Aspire 5750 that used to run Windows 7 but is now dual-booted with Ubuntu 12.04 (now my predominant OS). Recently an annoying bug developed in that my laptop won't boot without ...
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votes
1answer
359 views

Using HP charger on a Dell Inspiron 15R laptop [duplicate]

My Dell Inspiron 15R 5521 charger was stolen from my University desk. I have an old (about 4-5 years old) HP charger of my previous HP laptop. The Dell laptop on the bottom says: 19.5V and 3.34A / ...
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1answer
44 views

Battery ran out while installing Visual Studio 2013, and installation continued automatically after restart?

I thought I had enough battery, but it did run out completely (not hibernation or sleep, forced power off). When I plugged in my laptop and turned it on, Visual Studio 2013 Professional seemed to open ...
0
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1answer
154 views

35% Maximum Frequency in the Windows Resource Monitor

I have a problem with my CPU as it runs over 100% on battery yet it doesn't go beyond 35% when plugged in. Yes, I've checked power management options like a million times for high performance and ...
2
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2answers
1k views

Run laptop off AC power without charging battery

It's true that keeping lithium batteries fully charged degrades them quicker than at half charge (PDF). I bring my laptop with me in the day, but run it on the charger in the evenings. Besides ...
0
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1answer
18 views

Computer performance reducing on AC Power

I thought there was something wrong with my computer but thanks to you I realized that running my laptop on only AC power reduces the computer performance. And by the way, is it safe to have laptop ...
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0answers
42 views

Does the laptop power supply the SATA drive from battery even being powered off?

I have a Fujitsu Lifebook s762 with a native SSD drive. After a couple of months or so - the SSD became the "brick". I read the article and remembered, that just before the failure, I shut down the ...
0
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1answer
40 views

Dell Aftermarket Battery

My wife has a Dell Vostro 1700 Laptop, the battery was several years old, and no-longer held a charge for more than 20 minutes. So I ordered an aftermarket battery. After I installed it, she started ...
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1answer
32 views

Laptop battery maintainence with proper guide [duplicate]

How do I proper use my laptop battery??currently I am using windows 8 in my lenovo b590 model. I am confused with its power plan mode(balanced & power saver). In which options I should go , ...
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0answers
64 views

30% CPU usage when charger unplugged. When plugged in, cpu usage drops to 2%

I have checked by external debugger and it seems that batteryservice:update start runs 10 times per second. Other battery processes are running very often too, only with charger unplugged. It's brand ...
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1answer
116 views

How to accurately determine the remaining time of your laptop battery

I have a big issue with the estimated battery life of my laptop Though it states that i have an estimated 2hrs 23min battery life before the battery runs out , it normally lasts me only 0.7 hrs to ...
0
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0answers
534 views

Battery detected but not charging (remains 0%)

I've recently bought a new, 6600 mAh battery for my Acer Aspire One Netbook (AOA110, ZG5 Model) that refuses to charge. My adapter will charge the old battery (although it only lasts 10 minutes), so ...
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1answer
59 views

Computer won't start back up. [duplicate]

I unplugged everything from my computer a couple of days ago because I had to move it. After half an hour later I plugged everything back but my computer wouldn't start. It's a HP desktop. Here are ...
0
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0answers
65 views

Enable Samsung power plus for laptops

i'm using a samsung NP300V5AI laptop. Which has a samsung power plus feature where they allow you to stop charging your laptop battery when it reaches a certain limit below 100%. According to ...
0
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0answers
39 views

T61 Thinkpad beeps when almost fully charged

my Thinkpad continuously beeps when almost fully charged (like 90% charged), but when it is low on battery and charging, or not charging at all it doesn't beep. I had a similar problem in the past ...
0
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3answers
75 views

Bad computer battery? Dies after 45 minutes

A friend gave me a Toshiba Satellite laptop. The battery would not charge and only worked when plugged in. I bought a replacement battery on Ebay. As I charged the new battery, I watched the meter. ...
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0answers
24 views

Full CPU power with AC power and battery

How to check if my computer (Lenovo, Intel Core i5 running Windows 7 64bits) is running with full CPU power when both AC powered and battery-powered ? There are so many places (BIOS, Windows control ...
0
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1answer
63 views

Anker Battery shuts off for HP Dv6 2064ca

I bought high capacity (12 cells) from Anker. Battery provides 3 hrs backup time when browsing or sitting idle. When laptop gets hot the cooling fan start to speedup. Especially while watching movies ...
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1answer
27 views

building Battery pack for HP Dv6 2064ca [closed]

I replaced my battery pack with anker brand. It went faulty and was not charging. So they sent another pack which was turned out to be faulty. Now i got 2 battery packs sitting of now use. If i want ...
0
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1answer
103 views

New laptop battery charging only until 37% and keeping alive after reaching 0%

I just bought a new battery for my laptop (Sony VAIO). When I plugged it the first time it was 66% charged. I use it until I reached 5% and after that I started charging it. It just got charged until ...
3
votes
8answers
2k views

How to determine what size backup power equipment is needed?

I want to have an optimum continuous supply for my small office for 6hours, which includes, a laptop (AsusG73SW-> 8Cells : 5200 mAh 74 Whrs; Output : 19 V DC, 6.3 A, 150 W; Input: 100-240 V AC, 50/60 ...
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2answers
162 views

APC Back-UPS overload

I contacted APC to ask this question, but it has been 5 days with no response. My question is simple: I have an APC Back-UPS ES 750 (450 watts), but let's say I want to plug something that draws more ...
2
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1answer
30 views

Close programs when on battery

Is there a Windows application or a script that kills programs when my laptop in not plugged in (and preferably relaunches them when charging)? I have a few background applications that use too much ...
0
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1answer
22 views

How to know specification of battery

As my computer is showing the 'CMOS check sum error', if I have to replace the battery , how do I know the battery specification? I have a Intel motherboard and core 2 duo processor.
0
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1answer
74 views

Laptop shuts off after disconnected from power. How can I fix this?

As the question says, whenever the laptop is disconnected/removed from the charger, it goes into hibernate mode and cannot be "woke up" until it's connected to the charger again. I've tried changing ...
0
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0answers
108 views

Laptop dies and does not complete boot process if not on AC, yet battery is fine

My laptop, after a hard 6 years of use, is finally showing signs of electrical wear and tear through a myriad of strange issues, this being one of the least severe of them. I've experienced recently ...
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1answer
975 views

Is there an Acer battery management tool that limits the battery charge? Should I even bother?

I have a personal laptop (Lenovo Z470) at home and what I like about it is that its battery management software has a setting called "Best Battery Health" which makes the laptop stop charging at 50% ...
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0answers
143 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 ...
0
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1answer
44 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
435 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 ...
0
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0answers
39 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: ...
1
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0answers
162 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 ...
0
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0answers
42 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 ...
0
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1answer
220 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. ...
1
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2answers
51 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?
0
votes
0answers
20 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 ...
0
votes
1answer
242 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 ...
1
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1answer
720 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 ...
0
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0answers
53 views

SONY VAIO vpcee31fx laptop battery

I recently bought a new 19.5v battery for my SONY VAIO vpcee31fx. I also bought a power supply which was a little larger amp (but still 19.5v). The power supply used to charge the battery quicker. Now ...
1
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1answer
31 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 ...
0
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1answer
126 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 ...
0
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2answers
979 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 ...
2
votes
4answers
1k 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 ...