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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6 views

Why has my Battery Icon stopped updating in Linux?

I noticed something funky happening over the past week. My battery icon stopped updating. For a more specific definition, here's the expected and current behavior in detail: Expected Behavior ...
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15 views

CMOS battery lifespan

How long does it take for a CMOS battery to STOP working since the first instance of a failure. For example, if a CMOS battery fails on Jan 1, but then works without problem until May 1 (four months ...
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0answers
17 views

Battery icon says charging - but its not really plugged in. Samsung notebook win 8.1 issue

I have a series 9 samsung laptop recently upgraded to 8.1. It suddendly stopped charging the battery when it is ON, but it does when its turned off or sleeping. Therefore I beleve its software ...
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0answers
8 views

Debugging power on issue

First off I don't know if this is the correct fora, for this kind of question. My personal Acer Aspire 5745G has an issue, namely that it usually has issues powering on. The issue is that when the ...
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2answers
18 views

Can I charge my laptop using an External laptop charger?

How can I charge my Gateway laptop without using a computer? My battery cannot be charged onn the computer because the mother board is damaged.
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0answers
21 views

Macbook Pro 2011 Battery won't charge after it drained out 100% plus can't boot

My macbook was working fine until my magsafe charger's pin got broken. I unplugged magsafe charger as it was not charging and had faint green light. I continued to use Macbook until all of the battery ...
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0answers
18 views

Batterie pour HP EliteBook 2170p [closed]

Bonjour ! je poste ici pour vous demander conseil sur l'achat d'une batterie pour mon ordinateur portable. Je possède un HP EliteBook 2170p : Caractéristique du PC Et je souhaiterai en effet ...
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1answer
16 views

Processor Throttling, Speeds and Battery life

Does throttling the CPU down give you more battery life? Does i3 give you more battery life over an i7? Just I've not had the options to really test this theory as it requires having the same laptops ...
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1answer
37 views

Is my laptop's battery dangerous?

I've been using a battery in my laptop for 3 years and I've kept it in fairly good condition until now. My routine was to keep it plugged in most of the time but use it on battery once or twice a week ...
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6answers
2k views

Does more RAM usage cause more battery usage?

I'm using a 2 year old 15" AMD laptop running Windows 8, and its battery life is not as long as the brand new ultrabooks for sure. In the place I'm currently working I don't have access to a power ...
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0answers
14 views

Power4gear purpose and value

Asus laptops have Power4Gear app installed. Beside usual "custom" settings like when screen dims, laptops goes to sleep etc, does it have any other purpose or value? For example, does this software ...
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0answers
11 views

Hp laptop freezes when power plugged in

I am using HP-8510p Laptop my problem is when I plugged in my charger it stop working and all the things got freezes. I have changed following settings but no result: Removed the battery and pressed ...
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1answer
19 views

Computer doesnt charge and harddrive fail after spilling fluids

I spilled tea under my laptop (Dell 7520 15R) yesterday, water got on my rams, hard drive and battery. Computer shut down immediately. I cleaned everything, assembled it and it works fine, except that ...
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0answers
22 views

ubuntu laptop powers off without warning very soon after on battery

Problem: I have a laptop. It works very well on AC power, but on battery power, it powers off in a few minutes, if not seconds, without warning. I saw lots of similar problems not only from SU, but ...
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0answers
30 views

My laptop won't power on after an unexpected shutdown

I have an HP 6930 Elite book. I was just charging it in the afternoon yesterday while making a Word document on it and it suddenly got shutdown. No warning, no alert, no notification, just a sudden ...
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1answer
24 views

How to control charging cycle on Windows? [closed]

I was wondering if there was an application that would manage charging cycles of my notebook. I mean it would discharge from 100% do like 10% and then start charging to 100%. It would be good for my ...
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0answers
23 views

Is there a way to tell a laptop not to use the battery, besides removing it?

Is there a way to tell a laptop not to use the battery, besides removing the battery physically? I mostly use the laptop as a desktop, but sometimes may need to take it into anothewr room.
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1answer
24 views

What's the longest expected service life for PC laptop batteries

Have there been studies on which manufacturer's battery lasts better for the long term? I'm thinking of a comparison like they do with hard drive wear-and-tear. I'm not after who could give me the ...
0
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1answer
15 views

What are the other compatible batteries for acer travelmale P253-M? [closed]

I've a acer travelmate (ntebook) P253-M, whose battery I'm trying to replace. My question is: is there any other batteries that could be used instead of the exact model? For example, do I have to use ...
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1answer
26 views

Dead battery in brand new acer travel mate, have the warranty, how to repair? [closed]

Couple of days back I bought a brand new acer travel mate 253-M from amazon.de, but the battery is not being charged at all, seems the battery is dead. I'm not located in Germany, but I have the ...
2
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2answers
171 views

Why battery indicator doesn't behave linearly with amount of time remaining on windows 7

Just out of curiosity, I wanted to know why does battery indicator is not linearly related with the amount of time i.e. If we see the screenshot which was taken at 4.55 PM , it said battery percentage ...
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0answers
11 views

Using Perl to communicate with Nut

I'm trying to communicate with my UPS that's managed using NUT. I want to read values from it like line voltage, battery charge, etc. I don't want to send it commands to shut it down. At first I was ...
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0answers
53 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 ...
0
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1answer
41 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
61 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 ...
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1answer
13 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
67 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
39 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
40 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
42 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 / ...
0
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1answer
27 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 ...
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0answers
81 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 ...
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2answers
106 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
14 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 ...
0
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0answers
26 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 ...
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1answer
27 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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votes
1answer
31 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
44 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 ...
1
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1answer
30 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 ...
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0answers
87 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 ...
1
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1answer
47 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
20 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 ...
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0answers
25 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
votes
3answers
50 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. ...
0
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0answers
14 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
34 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
22 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
58 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
7answers
496 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 ...