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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35 views

Can you charge a laptop battery with it out of the computer?

I recently revived a 2002 iBook. I want to get it up and running but the DC in port is fried, thus making it impossible to charge the laptop battery. Is there a way to charge it externally? Keep in ...
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0answers
51 views

Can non-exact battery replacements destroy a laptop?

The battery of my old laptop has died. I have checked the internet shops in Türkiye to buy a new one, and came up with a few close models but not the exact model I need. None of them fully complies ...
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1answer
51 views

Remove the charger, when my Surface Pro 2 is fully charged?

I have a Surface Pro 2. When I use it on my desk, I have access to wall outlet and I can use my charger all the time. When the charging reaches about 100%, and the battery is fully charged, I don't ...
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0answers
51 views

Laptop overheating when running Ubuntu

I have been trying out several Linux distributions recently including Ubuntu, Mint and Fedora and I have had the same issue with all of them. My laptop overheats, the battery life is terrible (1 hour) ...
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1answer
17 views

Notebook's battery consumption based on OS

I use notebook to do typing, programming, browsing interne, downloading updates and so on. I use the same tasks on both Linux x64 and Windows 7 x64. My internet usage (browsing, downloading OS ...
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3answers
72 views

Replace SSD without unplugging laptop battery

Is it normally safe to replace a laptop SSD without unplugging the battery? I wish to replace the SSD on my Samsung NP900XCE, which required me to remove the entire back panel. So far so good, but ...
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1answer
65 views

Cuda toolkit draining battery windows 10

I installed CUDA toolkit 7.5 from NVIDIA (for Parallel programming course). But from the very next day, I've observed drastic change in the power consumption. Earlier the battery used to last for ...
-2
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1answer
57 views

How to keep and restore OS state when electricity was goes off?

I am using laptop and want to not lose my operating system running state when electricity was goes off. Of course this question can be solved by using a laptop battery or external power supply (such ...
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0answers
21 views

Windows 10 Stand-By Energy drain

I have updated my Laptop to Windows 10 1 or 2 month ago, and ever since I updated the Laptop, it isn't going into Stand-By-Mode anymore when I just close the Laptop. So when I was still using Windows ...
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1answer
74 views

Is mAh a universal rating?

When looking at laptop specs, I noticed that some laptops (such as mine) have a battery measurement of around 4500mAh at 10.7v. Now, I've got a power bank that's 13000mAh at 3.7v. I have several ...
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1answer
58 views

Battery drops down suddenly

I have purchased a LENOVO YOGA 300 recently. The battery discharges from 95% to 45 % normally and suddenly jumps to 7%. Pl suggest. Its just 2 month old Laptop.
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2answers
46 views

Laptop dedicated GPU - performace drop / variable performance

Laptop GPUs (dedicated and integrated) are driving me crazy ever since I got this computer. I've searched thousands of forums and potential solutions and I couldn't find anything that solves my ...
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0answers
36 views

Laptop CMOS battery implications

My 4 year old Dell Inspiron 15R's CMOS battery is running out (has run out ?). I know this because when I turn the laptop on it keeps on giving me 5 beeps till Windows loads. I am sure replacing the ...
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0answers
310 views

How can I update bios without battery in ASUS?

I want to update BIOS to new version. While the update process executes, was given an error. The error is : the battery must be charged above 20%... Notebook is ASUS X54C with Windows 7 Home Premium ...
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2answers
31 views

Unplugged battery, now screen won't turn on.

I have posted previously on this site about my battery no longer charging after leaving in hot car for an hour or two - it would turn on only when connected but not charge. I just now took off the the ...
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votes
1answer
96 views

Will an external battery power bank power an mini-ITX board (~200W)?

I was planning to build a laptop from scratch, and I've found some good DC-DC converters that allow you to use an external power source to power a standard desktop board (in this case a mini-ITX). The ...
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3answers
84 views

Will I damage the laptop if I always use a travel adapter to charge it? [closed]

This scenario could happen if I bought a laptop in one country but later moved to live in another country with a different power standard. Will it be safe to just add a travel adapter on the plug and ...
2
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0answers
111 views

Change charge_full_design value in Arch

I recently installed Arch and noticed that acpi was reporting the incorrect battery capacity value, here is the output: acpi -i Battery 0: Charging, 87%, 00:14:12 until charged Battery 0: design ...
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1answer
25 views

Gateway laptop NV57H77u suddenly died [closed]

My Gateway laptop NV57H77u suddenly died while I had my iPhone plugged into the USB to charge it’s battery. I had the laptop plugged into AC power during this time. After a very short period of time ...
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0answers
39 views

laptop is plugged in but not charging (xps|m1330)

I have a Dell laptop XPS M1330, I purchased battery one year ago ,and it's duration is 1 hour approximately, yesterday when I plugged in cord to my laptop charging light is not glow and in taskbar ...
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0answers
13 views

Toshiba satellite M840 water spilled [duplicate]

Water spilled on my laptop keyboard.. after I dried it and left it for the next day... The laptop now run normally with battery... But it is never charge the battery and it is not working without ...
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2answers
64 views

Charger of less output ampere than device?

I know the cases where the cable has more output amperes, here and here, but I am interested in if you can use cables with less output amperes with the devices. I have an universal charger Vivanco ...
2
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2answers
222 views

Is it ok that my asus k501lb will be plugged in always? [duplicate]

I have my asus k501lb laptop and it seems that the laptop's battery is non-removable, what is the disadvantage of this laptop battery? Is it good or not?... it seems that the new laptop now are none ...
3
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0answers
30 views

Laptop adds harsh noise to sound playback while running on battery

I've looked at what others have said to those who asked with similar problems, and it seems to be a power supply issue. The louder the sound I'm trying to listen to is, or the higher the volume, the ...
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0answers
86 views

How can I split an internal USB header into power and data?

I've recently built a new media centre/server, one of the features I wanted from this build was to be able to power on the system via a remote. I ended up purchasing an IR blaster that can be plugged ...
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1answer
277 views

Does changing the screen resolution affect power consumption?

If I have two identical monitors and have set one to display in high resolution and the other to display in low resolution will there be any difference in power consumption? Note that this question ...
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3answers
393 views

Do same size screens with different PPIs affect battery differently?

I was trying to find out if screens with different resolutions have different effects on the battery life. Around the net, I see a common answer as no to the question: "Will changing screen resolution ...
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1answer
56 views

Laptop shuts down randomly

Model: HP Pavillion 15-e010au I had a water damage accident about a year ago. Milk spill. Since then i have left the laptop in the closet for a year. Now when i turn on the laptop: Battery power: ...
2
votes
1answer
813 views

How to recover corrupted MacBook Pro SMC Firmware

I have a MacBook Pro Retina 15" that is no longer bootable due to (as far as I can tell) corrupted SMC firmware. The reason I think this is that SMC resets no longer work, the MagSafe charging light ...
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0answers
48 views

Luminous UPS turns off automatically when system left idle

I have Luminous UPS. When my UPS is on battery mode and system is idle it automatically turns off my computer. I have made sure it’s not due to low battery because when I start the UPS again it works ...
0
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1answer
40 views

How to tell whether my device has gone in to suspend

I've recently been given a new work laptop and have installed Fedora 22 on it, when I have suspended it recently it has woken up and I'm pretty sure the battery has drained massively while it should ...
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0answers
29 views

Prevent Windows 8 from booting when battery is low

Is there anyway to prevent Windows from booting when the battery is below a certain point (say 20%)? The reason I ask is that my current computer doesn't have any way to check the battery when it's ...
0
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1answer
40 views

Is there a way to make sure that my laptop doesn't exit sleep-mode?

I often have the following problem: I pack up my laptop, but forget to unplug/turn-off my mouse before doing the packing. Then soon after, I'll move the mouse.. causing my sleeping PC to wake up ...
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1answer
90 views

HP Stream 11" Intel Celeron 2GB RAM32GB SDD Laptop updated and is hung on shutting down. Ctrl alt del does nothing and can't find battery to remove

HP Stream 11" Intel Celeron 2GB RAM32GB SDD Laptop. When shutting down it gave options to update and shut down or sleep, so I updated. I closed the lid, when I opened it 12 hours later the screen was ...
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2answers
48 views

Laptop battery lasts significantly shorter than it should

A few days ago I bought a refurbished ThinkPad x201i with the following specs. i3 processor 250GB hard drive, 7200rpm 2GB RAM Runs Ubuntu 12.04 with xfce. Screen brightness set to around 50% most ...
2
votes
1answer
39 views

How do I find what is making my laptop hibernate at low battery?

This seems like an obvious question but it's more convoluted than it appears. At 7.5% my laptop goes into hibernate (which is about 40 minutes of power left). I have changed all the power plans to ...
0
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1answer
76 views

Is it possible to use a UPS or power inverter in place of a dying battery in a laptop?

My battery is dying and I can’t buy the a new battery because its not available in my country (India). My battery model is A41-X550E (ASUS). And it’s inside my laptop like this: So that’s why I ...
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1answer
835 views

How can I get a laptop's Windows 10 taskbar to show the battery level?

I've done searches with various permutations of battery life, power level, etc., and all the web content I've been able to see so far has been information on how to use power plans and other decisions ...
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1answer
100 views

My Samsung 700Z won't startup

My samsung 700Z will not start. It won't show the that the battery is charging and I can hold the power button but it won't do anything. I shut my computer down when it was updating because it was on ...
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0answers
32 views

Laptop battery indicator goes off and on simultaneously

I have recently updated my Windows 7 to Windows 10. And already I have been facing a weird problem. The battery indicator says "Battery not Found" and after sometime its just normal. And sometimes the ...
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0answers
17 views

Can I use a 130V AC adapter for my european laptop? [duplicate]

I have an old Dell XPS Studio 16 whose AC adapter broke a while ago. I've been using a universal adapter, but apparently Dell has some hardware checks hard coded that won't let the adapter charge the ...
4
votes
2answers
2k views

Why is the battery dead inspite of the full charge the previous day?

My laptop is 9 months old. In which I sparsely use the battery of the laptop as I am connected to the power outlet most of the time. This problem has started since 4 days. As per this post my system ...
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2answers
42 views

Laptop battery uptime monitor

Is there any way to measure what sort of uptime/active usage I get out of a given battery charge; that is, how long do I get actually using the laptop between full charges. I'd like it to be a ...
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0answers
95 views

Android Nexus 7 app battery usage percentages add up to over 100% of battery consumed

Simply put, the menu says that I've use 72% of my battery for screen and 42% for Wifi, among other things. This doesn't even include OS, which is at 48%. What is happening?? I'm running 5.1.1
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1answer
104 views

How can I add power plans to the battery notification area in Windows 10?

In previous versions of Windows it was possible to choose a power plan by left-clicking the battery icon and selecting the relevant power plan. As far as i can tell in Windows 10, this is not ...
1
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1answer
46 views

Strange battery behavior (not discharging)

Lately my laptop got this problem. Right after i unplug it (with full charge battery) it says that the duration remaining is about 30 minutes. Then, after few seconds, it drops from 100% to 90/96% ...
0
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1answer
73 views

Trying to understand the difference between various batteries for Lenovo Thinkpad T520

There are various types of batteries for the laptop and I'm not sure which one is best. The one I have right now (which came with it), is not enough to last me through my back-to-back classes, so I am ...
4
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6answers
12k views

Easy way to switch power plan in Windows 10

I've a 27" external monitor connected to my laptop and I use my laptop's screen as secondary. I've both screens turned on while I'm working. When I'm watching movies, I just keep my external monitor ...
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0answers
236 views

Fujitsu lifebook s752 BIOS password removal

I am trying to remove the BIOS password on a Fujitsu lifebook s752. Trying to remove it by getting a master password and using dogberts algorythms is impossible as it gives me back a 24 digit hash, ...
0
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1answer
24 views

Should I replace the AC charger as well when buying a new battery? [closed]

My notebook is already 4 years old, and it's battery basically died from one day to another (one day it could support the notebook for an hour, the next day I could get at most 2-3 minutes out of it). ...