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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1answer
21 views

Limit CPU frequency on Ubuntu Linux

I'm looking for a way to limit CPU frequency when system is running on battery. Solution doesn't have to work exclusively when using battery, it may be in form of bash commands from which I could make ...
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0answers
18 views

mobile getting charge by only laptop usb port and not charging using any ac charger [closed]

strong texthi guys i am new here my mobile is android mobile i by mistake put in mirco usb charging port cables opposite and from that time mobile stop charging by ac charger i try a lot of different ...
0
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1answer
32 views

Batteries react strangely

A school has several identical laptops bought 5 years ago: Fujistu Lifebook model A530 Since several weeks ago, around 50% of them randomly turn off after 1 to 5 minutes: The shutdown is sudden: ...
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1answer
33 views

recommended battery for 750 watt ups

I have a ups with capacity 750 Watt, please advise if i can use 175 Amp battery with 750 watt ups? otherwise please advise suitable battery capacity for 750 watt ups so it can perform good.
2
votes
0answers
29 views

Battery Stops Charging Randomly

I have a Lenovo E540 running Windows 10 x64. For quite a while now, I've been having problems with how the battery charges. When I plug it in, it will always start charging - maybe for only 30 ...
0
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0answers
33 views

(Windows 10 Pro) Set task scheduler to gracefully shutdown when switching to battery

Long story short, we have a requirement tossed on us to make a Surface 3 shut down upon commercial power loss. I have went through Microsoft support, and we tried several things to attempt to disable ...
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votes
0answers
23 views

UPS battery rapid discharge when turned off (from the power button)

I notice twice now that when I turn off a UPS from the power button, its battery rapidly discharges. Today it discharged from 100% to 20% in about 30 minutes. The batteries themselves are fairly new, ...
0
votes
0answers
9 views

Why isn't the OEM-provided (Sony) battery health monitor working?

I have a 2010 Sony Vaio Z11 (a very nice laptop, I might add) which has a 9-cell "extended" battery attached to it. When my laptop was new, 6 years ago, I got a full 7 hours out of it - which would ...
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vote
1answer
34 views

Does a worn down battery charge faster than a new battery

My laptop which is from late 2012 has a worn down battery which only lasts for 15 minutes.For some reason it charges from 15% to 100% in 1 hour of active web browsing and coding. But my Nexus 9 tablet ...
61
votes
4answers
9k views

Unplug laptop while it is running

Am I "hurting" my HP laptop by leaving it running, unplugging from outlet - walking a few feet and plugging it back in? My brother-in-law says I am.
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0answers
16 views

HP Envy 17 will only charge when lid is closed

My HP Envy 17 is just out of warranty, it is running Windows 7 64bit. The unit does not charge when the lid open and laptop is on. It only charges when closed. I've read that this is a common issue ...
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0answers
58 views

El Capitan won't sleep when I close the display

I just got this new macbook pro with el capitan installed, my problem is that if I just close the lid overnight on battery power, in the morning I find it with no battery at all. Here's an extract ...
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0answers
6 views

Is auto-sync really the biggest battery killer? [migrated]

I have been digging the archives for eternity to find that Location Services and Auto-sync (assuming we ignored other factors such as Bluetooth etc -- because my focus is mainly about auto sync) are ...
0
votes
1answer
33 views

Lenovo laptop, Windows 10 not charging battery

I have a Lenovo G500s. It came with Windows 8.1 pre-installed with the battery working fine. I've installed Windows 10 on the laptop now and suddenly the battery is not recognized anymore. It says "0% ...
0
votes
1answer
23 views

Prolong battery life [duplicate]

What are the general guidelines for maintaining the laptop computer battery? -Is using the laptop on battery,disconnected from outlet,better or is the opposite true? -If the computer is performing ...
0
votes
0answers
19 views

Windows 8 force battery/plugged-in icon to show in task bar

On laptop systems with a battery, Windows 8 shows either a battery icon (when running from battery) or a "plugged in" icon (when running from AC). Clicking on this icon allows changing the power ...
0
votes
2answers
40 views

Windows-7 Acer Aspire 5738 laptop simply turns off

My laptop simply switches off on its own...and I mean switch off without warning or anything...as if someone cut the power supply so the computer did not show any warning etc. And this happens only ...
1
vote
0answers
29 views

Computer's power consumption got really high after upgrading to Windows 10

I have an HP Envy dv7 laptop (750GB HDD, 8GB RAM, 1600x900 Display). I used to work on Windows 8.1 and the battery used to serve me for 3-4 hours even when using programs that need a lot of processing ...
0
votes
1answer
49 views

charge old battery with adapter [closed]

I want to use my old hp notebook battery but I dont have the laptop and now I want to charge it... but it has 5 input, I mean a port which gets in 5 blade.... only thing that is write in it is 14.8V ...
0
votes
2answers
21 views

Laptop loses charge while plugged in

Whenever I start my laptop, if I don't close it at the Windows 8 boot logo, it would shut off. The charger light would show green but turn orange quickly then shut off. Sometimes when I get it to ...
0
votes
1answer
117 views

Ubuntu, battery is never fully charged

I installed Ubuntu 16.04 in a Lenovo thinkpad e550 and i have a problem: the battery doesn't charge, the icon on the panel doesn't indicate it's charging, and in "Power Statistics" -> "Laptop Battery" ...
1
vote
2answers
64 views

Force laptop to use battery, not charger

I was wondering if it was possible to force a laptop running Windows to use its battery as the power source even when a charger is plugged in? If so, is it possible to switch between power sources ...
0
votes
1answer
32 views

Battery is shown as fully charged but does not feed the laptop

My laptop is a young Acer V11 Touch (V3-112P-P2E7). Yesterday I used it regularly on battery mode and I left it charging overnight. This morning's surprise is that the laptop only works when connected ...
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votes
1answer
58 views

How to get the most battery life out of a laptop?

I'm getting a brand new Dell Inspiron 13 7359 with 8GB of RAM, an Intel Skylake i5 processor, and Intel HD graphics (550 I believe). I did numerous hours of research and found this to be better than ...
0
votes
0answers
15 views

Laptop fails to boot when plugged in but not on battery

My laptop is getting older (4-5 years old now) and I am having frequent issues with it failing to boot (freezing on BIOS screen, on Windows loading screen, on login screen, or some point in between). ...
1
vote
0answers
23 views

Asus Zenbook UX31A not booting

I have been trying to repair a Asus Zenbook UX31A for quite some time and would like to pick your brains, because I am finally out of ideas. When I received the Zenbook it was not booting, not ...
0
votes
2answers
67 views

How do I obtain battery stats on windows 10?

I am looking for simple statistics like: the average battery life time or average screen on time relative power consumption of the different components (screen, wifi, system, applications) ...
2
votes
2answers
30 views

Asus Laptop - Issues with display

When i turn on my old ASUS laptop the screen stays black, but when i leave it powered on for about 30 minutes and do a restart the display shows up normally. Why is that happening? Does anyone has ...
0
votes
2answers
44 views

What is the difference between 3 cells, 4 cells and 6 cells battery

I am going to buy new laptop but there is some confusion in battery capacity. I found that 3 cells battery backup is good than 4 cells battery laptop but I read somewhere that more cells means that ...
0
votes
1answer
30 views

Laptop display malfunction?

I just came home from school and turned on my computer from sleep mode, and this showed up Yesterday I had to put my laptop on sleep mode on battery for the night, because I had to charge my ...
0
votes
2answers
19 views

Laptop overheats when connected to the wall plug, but not when using battery

Especially when playing CS:GO CPU temperatures reach 95 but when I unplug the charger and use only the battery, the temperatures remain around 85. The game runs smoothly in both cases.
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0answers
16 views

Can contemporary batteries report on their health status?

The battery on my laptop is weak and I have a bunch of spare ones I could reuse. One problem, though, is to quickly estimate which ones are "better" than the others. Windows (7, 8, 10) have the ...
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votes
3answers
33 views

Can software keep my laptop from charging?

I have a Lenovo S540 with debian testing (stretch) set up. A couple of days ago I noticed that the battery is not charging even when it's plugged in. Of course this could be a broken power cord of ...
0
votes
1answer
15 views

dell inspiron 15R turbo

i have a inspiron 15R turbo model 7520.i ordered a new battery but the one i got is 60wh.the original battery is 48wh.i am facing some problems,the laptops shuts down without any warning ...
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0answers
16 views

Does the instant shutdown of the laptop affect the the components adversely? [duplicate]

Whenever I unplug my charger or when the power is out my laptop immediately shuts down. Does this immediate shutdown of the laptop affect the hardware and the OS in any adverse way if this happens ...
1
vote
0answers
34 views

How to save battery life for notebooks always connected to the AC grid

I have a Toshiba Satellite L50-A-161 with a Li-ion battery. The removal of my Toshiba battery is quite complicated: it is necessary to open the case unscrewing 14 screws and remove the dvd unit. The ...
0
votes
1answer
45 views

Shutdown a linux computer depending on the battery level

Is there a way to shutdown a linux-based computer when the battery charge drops below a certain level? I have searched through the shutdown and poweroff manuals but found nothing relevant.
1
vote
1answer
23 views

Toshiba Laptop suddenly shuts down when on battery

I'd be grateful if someone coud help me. My Toshiba L845 laptop suddenly shuts down when on low battery. It doesn't hibernate in the usual way it did. It completly powers off, as if someone had pulled ...
1
vote
0answers
15 views

Samsung Series 5 NP510R5E-S01CA battery issue

I was using my laptop one day and it was plugged in but it suddenly stopped charging. It didn't say "Charger connected, not charging" or anything. It was like the cord wasn't even plugged in. I ...
3
votes
0answers
39 views

Run a program using NVIDIA dedicated GPU only when plugged into power

Under 3d Settings in NVIDIA's control panel, it allows me to choose whether specific programs always start using the integrated graphics on my CPU or the dedicated GTX 960M. Can I create a condition ...
0
votes
1answer
724 views

What can I do to make Windows 10 recognize the battery (again)?

I bought a used laptop (Acer Aspire V5-553G). Everything was fine until yesterday. Windows 10 Professional does not recognize the battery anymore. The Battery charges and functions normally ...
0
votes
0answers
22 views

Retrieve battery power level history in Windows 7

I recently bought a new battery for my Dell Inspiron 4050 running on Windows 7. It worked fine for 4 days. On the 4th day, I was using the laptop on battery power (80% charged) when it instantaneously ...
0
votes
0answers
11 views

Li-Ion laptop batteries are my batterries really bad?

My laptop battery was just at 93% capacity last time it was charged fully. I charged it fully again, and this time it only hits 87% ahhhhhh. This is nuts. I've had this battery for about a week. Is ...
4
votes
1answer
37 views

Brand new laptop li-ion battery has 74% capacity, should I return it? What can I do?

I've only had this battery for maybe three days. I think it might have hit 100% once... and it hasn't since. It's been dropping... 94%, then 92%, now 91%... I know that you're only supposed to charge ...
0
votes
0answers
9 views

Windows 7 fresh installation on laptop battery not charging issues [duplicate]

Hi wasn't sure if this was suited here, but seems to be a driver/OS issue rather than a hardware issue. My laptop has a charging indicator which is lit up on boot, about 30 seconds after boot the ...
0
votes
1answer
19 views

Brightness filters & battery

I have various screen filters on either pc or mobile that artificially lower brightness. I don't know if it just covers whole screen with semitransparent black layer("dimmer") or really adjustes the ...
1
vote
1answer
51 views

Could my screen flickering be because of a loose battery?

My laptop screen has been flickering on battery power for quite a while now. What it looks like is kind of like when you try record a screen with a camera (i.e. black flashing of the entire screen). ...
0
votes
0answers
27 views

Why does a radio station play through my speakers when the laptop runs on battery? [duplicate]

Every fortnight, on a schedule, I disconnect the charger from my laptop (which is largely stationary anyway) and let the battery run down. As soon as I disconnected the battery earlier today, I ...
0
votes
0answers
25 views

Laptop mouse power draw

I bought a mouse on amazon and one of the other customers was complaining about the mouse killing their battery incredibly fast so I tried to run the numbers and it doesn't seem to match my real world ...
0
votes
1answer
51 views

Laptop keeps killing hard drives, possibly caused by faulty battery

I have an ASUS X551M Notebook PC, running Ubuntu 14.04. It's about a year old right now. When I got it, it worked perfectly. However, a couple months in, the battery started losing lifespan. ...