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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301 views

Asus k50ij won't start, power problems

I am trying to fix an Asus L50ij laptop. Symptoms: lost all battery, wouldn’t turn on on power cable. My first guess was the power jack, because the transformer was good. I opened it up but the ...
6
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4answers
2k views

How to display battery discharge rate in watts, Windows 8 + perfmon

Windows 'perfmon' utility allows to display graphs for different counters. One of them is Battery -> "Discharge rate" that can be spotted in the internet as a good way to examine battery discharge. I ...
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2answers
2k views

Notebook powers off way before battery is on a critical level

I have a notebook from Asus which is about to make its second year of life. I have absolutely no problems with full battery capacity, which is about 2 and a half hours, only 30 minutes or so less than ...
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votes
1answer
64 views

Advice on a laptop after a battery meltdown

I have an old but highly functional Dell Inspiron 1720 that I continue to use. The laptop is ~4 years old, but the battery is an aftermarket replacement about 18 months old. Two nights ago the ...
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1answer
190 views

Battery Error 601 HP Pavilion dv6

The computer that i own is currently around four years old, that battery has worked perfectly up until the last year, i've been doing a LOT of research recently into why the battery is not working ...
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1answer
132 views

solar cells charging netbook [duplicate]

I want to see if I can charge my netbook with solar panels. With 16 smalls solar panels(they are from Westinghouse Turbo Rocket Solar Path Light with a 1.2v 150mAh a piece) the voltage and amps come ...
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0answers
87 views

acer 5755g battery backup sudden decrase from 3hrs charging to 1 hr…what is the cause?

Few days ago my acer 5755g have 3 hours battery backup but now my battery backup is just 1 hour lasting .i asked to some acer customer he answered me may be the last format was done with charging .now ...
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0answers
40 views

Connecting an universal battery to my wacom

I need help getting my cintiq 13hd (wacom), to connect to an universal battery. I tried a 30pin to DC plug but that restricts the power apparently and I need it to be 19v. When I talked to the ...
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4answers
237 views

CMOS Battery recharged [duplicate]

My pc was unused for several months(its a 5 year old acer desktop) and on boot up a screen came up indicating that the CMOS battery was low. Any time I restarted, as expected, the same screen came up ...
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0answers
111 views

Powering a pico-ITX board with a UPS board for long intervals

I'm putting together a project to make a DIY "Tablet PC" with readily-available products that I can put together and use with little soldering effort. I have the motherboard and a 10" touch screen ...
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2answers
181 views

Laptop has black screen and fans on when on battery power

When trying to turn on my laptop using just the battery, the lights and fans run, but the screen and all other operations do not work. When the power cord is plugged in, the laptop works fine. It ...
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0answers
269 views

Replacing 11.1v 4400mah Gateway battery with 11.1v 6600mah

I have 2 Gateway T-1620 laptop computers. When the original 11.1v 4400mah batteries went soft I replaced them with 6600mah batteries to give longer off-line use. Both laptops will charge either ...
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3answers
3k views

Partially Charge Acer Laptop to Increase battery life

I own an Acer Aspire 5755G on Windows 7 x64 and I recently read that keeping your battery charged at 100% the whole time degrades battery life. The problem is, I always keep it in my laptop but ...
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3answers
555 views

In linux, how to find whether CMOS battery is working or not?

I want to programatically determine whether CMOS battery is working or not. In my C++ program on linux I want to connect to internet and update system time if CMOS battery is not present or not ...
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2answers
4k views

Windows 8 custom power plan keeps resetting itself

I just got a new Haswell laptop, and was experiencing very short battery life: about 3-4 hrs with minimal use. I knew this had to be wrong, so I checked the power plan, and found that "HP Recommended" ...
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1answer
127 views

Battery sort of died after a power outage

So today the power went out and my laptop did a strange popping sound and turned off even though it had like 50% battery (it was plugged in at the time though). This has never happened before, it'll ...
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2answers
7k views

What is the function/purpose of the pinhole on the battery of a Samsung Series 5 ultrabook?

Some background (not entirely relevent to main question): I can't find my specific model of laptop online but it has all the same specs as this excluding the touchscreen: http://bit.ly/18netZQ It's a ...
2
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2answers
322 views

Do ULV Core i5 CPUs consume same power as i7 CPUs if they use same TDP?

Title says it all really: If you have a Core i5 CPU and its TDP is 17W and there is a Core i7 CPU which also has TDP 17W, will they consume the same battery power even though one runs faster? I am ...
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2answers
4k views

Lenovo Energy Management - Battery life on dual boot

For nearly two years I was running only Ubuntu on my Lenovo G570 laptop. Recently I changed to dual-boot with arrival of Windows 8.1 Preview. With that I installed some Lenovo provided applications, ...
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2answers
102 views

Why wont new hard drive use battery power?

I recently replaced the hard drive and the battery on my HP G62 laptop, Ubuntu 13.10 is installed on the drive. The machine will not boot on battery power, but works fine when plugged in. When ...
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0answers
46 views

iPod not connecting to Windows 7 PC

I have an old iPod which is not connected to my Windows 7 PC. I have iTunes in my PC but still nothing works. Actually I have't use it in last one month, yesterday I have try to ON it but battery is ...
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2answers
3k views

Can I charge my laptop with a charger that has different specifications?

I'm using a common charger for both of my laptops. The charger is specified at 20 Volts and 3.25 Amperes. My other laptop has a specification of 19 V and 3.42 A. Is it safe to charge my laptop with ...
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1answer
141 views

Playing movies from Android OS off SD/memory card

I have been doing some reading about running android OS from the BOOT menu using an SD/memory card in my laptop. For the purposes of watching movies on a long flight, for example, would loading the ...
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votes
1answer
4k views

Application to only partially charge laptop battery [closed]

I was wondering if there were any software packages out there that will prevent my laptop battery from charging above a specified level. I know there are propriety options out there for Samsung and ...
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0answers
295 views

CPU performance monitoring and diagnosis Maximum Frequency drop

Question: what might be the reason why the maximum frequency goes down to 49%, while this is not sufficient to run existing processes? (please note if I am wrong in interpreting that CPU usage is ...
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1answer
2k views

Are there any Linux distros that are specially made for laptops? [closed]

I have tried and tested Ubuntu, Linux Mint, Arch Linux and Windows. Recently I have come across Open SUSE. I was wondering what are some Linux distros that are specially designed for laptops. I am ...
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1answer
96 views

Switch from battery to powerpack causes strange messages and slowdown of computer

A problem that has flabbergasted me now for a while. On a Dell Latitude E6410, everything works swimmingly when the computer runs on battery. the moment that one inserts a powerpack (e.g. connects the ...
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1answer
265 views

Power use on Acer Aspire (Cannot remove battery), How to save battery life?

I own an Acer Aspire m5-581t, In which the battery cannot be removed, I use my laptop all the time for 6-7 hours everyday. Do I just keep the battery at 100% connected to the AC power or shall I ...
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votes
3answers
3k views

Battery won't charge on new Asus laptop (ubuntu)

Hi I bought a brand new Asus Q550L notebook from Bestbuy the other day and I removed Windows 8 from it and replaced it with Ubuntu. Now the battery won't charge. It is sitting at 45% capacity, if I ...
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1answer
397 views

Disable critical battery event

I have a battery that is a bit messed up and probably needs to be replaced. In the meantime, I would to use it without it automatically going into sleep mode. Sometimes this happens after about 20 ...
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0answers
45 views

Can I prevent Windows 7 from restoring my brightess setting when the power state changes?

I have a question regarding Windows 7. I have set different values for the screen brightness when on battery and when on AC power (in the power plan settings). If I manually change the brightness of ...
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2answers
4k views

Battery shows 100% charged but netbook does not work without AC adapter

How can I test if the battery is connected internally to my netbook or if it is working? Is it possible that the battery has been disabled by a software setting? The battery shows 100% charged, but ...
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4answers
1k views

Why is my BIOS power-on password not resetting even though my CMOS battery has been out for over an hour?

I have an old HP xw8400 workstation. I didn't remember the power-on password I had set for it. So I unplugged the computer, took out the CMOS battery, and left it out for over an hour. But the ...
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0answers
168 views

14.8 V vs 14.4 V battery

I had a laptop battery that was 14.4 V, and I ordered an aftermarket replacement. The replacement was sold as 14.4 V but says on the battery that it is 14.8 V. Is this safe to use? The original AC ...
25
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2answers
941 views

How does Windows detect battery issues?

I have a laptop that's a little over 5 years old, and I've never changed the battery, so I believe Windows 7 when it tells me "there is a problem with your battery", and to consider replacing it. My ...
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0answers
228 views

Ubuntu 12.04 shuts down suddenly when running on fully charged battery

When I use battery power in Ubuntu 12.04, it sometimes suddenly shuts itself down without any warning even though I am sure that the battery is almost fully charged. This never occurs when plugged in ...
2
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1answer
5k views

Stop my computer from charging when the battery is full? [duplicate]

I've read online before that if you charge your laptop when it is full, it will eventually "wear out" the battery. Is there a way to stop my laptop from accepting any charge when its battery is over ...
0
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1answer
88 views

Are any of these laptop bricks compatible/interchangeable?

Over the years I've acquired several laptop charger bricks. I haven't disposed of any of them because I've always felt that they're probably interchangeable, but I never really knew what would make ...
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1answer
149 views

Computer Crash when Charging Cable Unplugged

On my laptop I get crashes every time I unplug my charging cable. It wasn't always like this, but has become like this over some time. Basically, I unplug the cord and it turns off instantly. It ...
0
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1answer
152 views

UPS vs Solar Power in case of power failure for a server [closed]

I am looking for a low power, low end pc able to run 24/7 without overheating and a way to support it in case of power failure. Power failures can be up to 72 hours. The pc dosen't need a monitor or ...
0
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2answers
67 views

Check which software is using the battery on my MAC

Whoever is familiar with the android system, probably knows about the utility that allows to check which app used the battery in percentage? Is there something similar for the mac? Of course, it ...
0
votes
1answer
136 views

Linux drains battery

I have a Lenovo ThinkPad L412 with a non-overclocked i5 2nd gen, 4GB RAM, and a Radeon HDv545. Whenever I use Windows and have possibly battery intensive applications running, the battery still lasts ...
0
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1answer
564 views

Acer Laptop is shutting off instantly when on battery

My latop (Acer M5 581-TG) is completely shutting off when on battery, sometimes before it can even attempt to boot, sometimes after 10 minutes of logging into windows. Everything is fine if it is ...
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1answer
2k views

My laptop freezes when on battery?

So, first and foremost I have an HP2510p with 4GB ram running Windows 7 Ultimate 64-bit (I had Ubuntu 13.04 64-bit before but the problem was there so it has nothing to do with the OSs). I also know ...
0
votes
1answer
292 views

Asus ultrabook won't turn on

I have an ASUS ZENBOOK UX31A with windows 8 installed on it, I recently tried to start the laptop, and it just doesn't do anything, it won't turn on any lights, no reaction what so ever. If I plug in ...
1
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1answer
89 views

Repeated laptop battery failures — bad batteries or bad motherboard?

I replaced my ASUS laptop battery because the charge light started blinking orange and the battery would only last a couple of minutes before dying. This condition started suddenly, not with the usual ...
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0answers
85 views

Windows should display warning when on battery

I have purchased my first laptop recently. But, the problem is many times I forgot to connect it to power supply. Due, to which all of my battery get exhausted and I get warning when it is only 10% ...
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3answers
214 views

Using power cord without battery inserted in laptop [duplicate]

Can I use the charger to power the computer without the battery? Will it damage the computer?
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1answer
204 views

Sony vaio laptop's battery never charges to 100%

I bought a brand new sony vaio laptop (Model E15135). All is good, but its battery never charges to 100%. When it reaches to 99%, and i point the mouse to the battery, it shows "99% Available (Plugged ...
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1answer
587 views

Laptop battery does not charge

I bought a faulty LG R500 laptop and I repaired it. However, the laptop battery does not charge. Therefore, I am unable to use the laptop when it is not plugged in. In Linux Mint, a software shows ...