Battery life refers to the amount of time that a portable computer such as a laptop can function while powered only by its battery.

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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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1answer
237 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 ...
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2answers
30 views

Disabling browsing ads using Flash only

I do not want to block all advertisement. However, I do want to get rid of just the ones using Flash. They drain my device’s battery so fast I cannot allow them. Any browser extensions that take care ...
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124 views

Flags to save battery life in Chrome? [closed]

I'm wondering what flags could be switched on/off in Chrome to make it save more battery life.
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1answer
38 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 ...
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1answer
341 views

What consumes laptop battery when it is turned off?

My Toshiba laptop consumes battery while it is off. At night I usually turn it off and unplug the power supply. I noticed that when I turn it on again the battery is no longer full but around 90%. ...
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2answers
604 views

Battery is getting drained very fast

My laptop is approx. 18 month old. I have changed the internal hard drive recently and I have Ubuntu installed on the system. The problem is my laptop's battery is draining very fast. When it ...
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487 views

Battery life Samsung Series 7 with Linux (Mint, KDE)

I've been trying all the tricks I can find to reduce power usage on my Samsung series 7 (Ivy Bridge Core i7, AMD Radeon HD 8570M GPU) laptop (running Linux Mint Olivia, KDE version), but it all seems ...
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1answer
49 views

Battery: uncharging?

I have a Lenovo Laptop (G470). My OS is Ubuntu. Five minutes ago my computer said that only two minutes were necessary in order to have the battery fully charged. Right now the indicator says that I ...
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157 views

Laptop screen dimming

On my laptop, when I press the Fn keys that dim the screen - is Windows doing the dimming, or the hardware? Are if it is the hardware, would using software to dim it further improve battery life?
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848 views

It seems Windows 8.1 killed my two T60 laptop batteries

Upgraded Windows 7 to Win8 earlier this year, and last week upgraded to Windows 8.1. (Lenovo T60) Had no problem with battery usage when on Win7 nor Win8. After about a week of Win8.1 on my system, ...
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3answers
5k views

How can I limit battery charging on a Surface Pro (2) or Windows 8(.1)?

Limiting the maximum amount that a battery can be charged extends its life. Historically, utilities for this have been provided by the manufacturer (i.e. on Sony and Lenovo). Does Windows 8 or 8.1 ...
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3answers
230 views

Fixing poor battery life on Windows laptop

I am a college student and I use my laptop in lectures to take notes or (in the event of a boring lecture) work on assignments for other classes. With only vim and a web browser open, I still only get ...
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1answer
74 views

Why was my laptop unable to turn on?

I suspended Ubuntu on my laptop, and then carried it in my backpack to another place. Then I found that the laptop was off instead of being suspended. I couldn't make it power on either, even with ...
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1answer
108 views

Laptops and batteries left plugged in

What kind of batteries can be left plugged in and not suffer any side effects such as less battery life or exploding? I was told some laptops and even some apples can be left plugged in continuous ...
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1answer
113 views

unplug the laptop battery when the laptop is working [duplicate]

I usually plug the charger to my laptop, whiles my battery is plugged in. After a while, when my battery became fully charged I remove it from laptop, while the laptop is still working. Now I want ...
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61 views

Sudden drop in battery life halfway

My thinkpad x61S just got a new battery. But still the battery drops suddenly from about 50% to 0% in 15 minutes. Even with the new one. I'm running windows 7. Any ideas ?
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2answers
47k views

What is a WHr (watthour)?

I was looking for a few computers, and my dad was really picky about the battery life. One of them was "Up to 5 hours", another was "4-cell Lithium Ion (43WHr)", and another was "6-cell Lithium Ion ...
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1answer
697 views

Does windows 8 hybrid-boot consume more battery than the normal boot when my laptop is turned off?

I just bought an Asus Vivobook and I've noticed the battery life is not as long as they say in the specs. I'd like to know if the hybrid-boot is causing this or is something related to my laptop. I'm ...
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2answers
406 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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1answer
42k views

why the first time charge is important

It is always advised to charge a device lithium battery (pretty much all laptop, camera, phones have it) long in the first time to extend the battery life. Could anyone explain why it is so?
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1answer
5k 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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1answer
3k 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
98 views

How can I close/open several programs at once using one hotkey?

I have a lot of things runnning on my Thinkpad T530. Sometimes I'd like to maximise battery life by closing several programs at once. I'd like to be able to reopen them when needed (with or without an ...
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1answer
214 views

Win32_Battery.EstimatedRunTime

According to Microsoft the field EstimatedRunTime of the Win32_Battery WMI class is an Estimate in minutes of the time to battery charge depletion under the present load conditions if the ...
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16 views

BAD: Using laptop with battery while plugging to mains? [duplicate]

I mean, is it really true? Using a laptop while it is plugged in will lessen the life span of the battery? I'm talking about Li-ion batteries which dominates the newer laptops. I used to plugged it ...
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1answer
101 views

Laptop battery discharge jump/non-linear - replace?

I have a 3yr old laptop, Acer 1810T olympic edition. Battery parameters, as written on the battery itself: 11.1V, 5.27Ah, 5600mAh, 63Wh. What's been happening lately is that it goes normally down to ...
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1answer
113 views

Kubuntu 12.10 laptop battery droping fast

I have done fresh install of Kubuntu 12.10 on my HP Pavilion G6 Laptop. I'm a bit nervous that my battery is not lasting more than 1 hour while for Windows 8 it was lasting for 5 Hours(while using ...
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2answers
593 views

How to prevent PC's system resume

Here's my situation: I left my laptop ON last night and got fully discharged its battery. It has already a hard drive faults. Only a week since the SMART warning always appearing whenever I boot it. ...
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208 views

Laptop getting shutdown / run by battery after 10 minutes

Laptop is getting shut down after 10 minutes while it's run without battery - but with battery as well as plugged in it runs first 10 minutes by power then automatically runs by battery until the ...
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2answers
490 views

Dell M6700 much slower when connected to external battery pack (Energizer XP18000)

A while back, I bought some external battery packs to extend the battery life of my laptop. They're Energizer XP18000s. But I got the feeling that my laptop was going much slower with the battery ...
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3answers
3k views

Laptop battery software to disable charging AND battery usage

I'm going to buy a Microsoft Surface notebook that does not have the capability to easily remove the battery. I'm also going to be near a powerpoint for around 90% of my usage of this notebook. To ...
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1k views

Does depleting the battery completely do damage to it?

This question applies to laptops, but also to smartphones or anything that's battery based and rechargeable. Does depleting it completely (Computer won't even turn on, or turn on but shuts down ...
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142 views

Put and remove laptop battry while working

When I work on my laptop I remove the battery and work on AC power, but some times I want to move the the lap while its on I was think of putting the battery then remove the AC power, and when come ...
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6k views

Can a faulty battery cause my laptop to shutdown even on AC line? (battery installed AND plugged in together)

Until recently, I experience something rather annoying (and troublesome) with my laptop. It spontaneously shuts down itself without any warning, it restarts. No blue screen, no hanging program, just ...
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2answers
5k views

i7-3537U or i5-3337U - How much does it affect battery life [closed]

I want to purchase a laptop, will be using it mostly for general study work, word, excel, web surfing, movies etc. I finally came down with two dell laptops, only difference with the processor, one ...
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5answers
2k views

Is it normal for a laptop to discharge to 60% when not plugged in and not turned on for 5 days?

I recently purchased a Lenovo IdeaPad Y400 and have noticed that after I do the following: Use the laptop while plugged in Shut down and unplug (it is fully charged at this point) Turn it back on ...
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1answer
104 views

How is battery charge reported to the operating system?

This feels like a stack exchange EE question, but it seems like it belongs here instead. How is the charge of a notebook computer's battery reported to the operating system? Since all laptop ...
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288 views

My laptop's battery is 46% worn - what can I do?

I've got an Asus Eee 1005PE "netbook" laptop with a 6-cell battery. The usage pattern has always been to let it drain down to 10-40% capacity and then let it recharge during the night. I realize ...
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2answers
3k views

Battery plugged in, not charging

This is a new battery and this gives the problem of Plugged In, Not Charging for the past two days. I have no clue as to why this is happening. Sometimes it does, sometimes it does not. Battery Wear ...
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408 views

Repeating mysql error in OSX console

I'm getting an endlessly repeating set of errors in my mac's console that go as follows: Jan 6 00:21:37 Air com.apple.launchd[1] (com.mysql.mysqld): Throttling respawn: Will start in 9 seconds Jan ...
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899 views

Does a dedicated GPU drain battery life heavily during normal use?

Suppose you have two identical ultrabooks but one uses dedicated graphics instead of using the one in the CPU, if you execute the same office tasks on both machoines (i.e., not gaming) will the ...
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489 views

Measuring how much battery charge a process uses in Windows

As battery life in most laptops is naturally limited to a few hours, is there any way to know how much battery a process (i.e. Microsoft Word or GNS.exe) is using? Like process A is using this much ...
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5answers
228 views

Macbook started to consume battery more quickly

This seemed to happen after I did several things at once (all of which I have since reversed in trying to track this down): installed a (Crucial M4) SSD drive (replacing my old SATA 5400 RPM drive), ...
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1answer
339 views

How do I interpret the information regarding the Vivobook S400CA battery life?

I'm interested in an ultrabook, but I cannot understand it's battery life's spec. The model's website indicates that it has 44 Whrs Polymer Battery How does this information translates into the ...
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1answer
530 views

laptop mode in Linux vs solid state drive (SSD) [closed]

I have a device running Ubuntu 10.04 with SSD drive and want to optimize its power consumption. As far as I understood laptop mode documentation, it is intended for conventional disk drives. Does it ...
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2k views

Modify Laptop Battery's internal status?

Is there any way to modify the values of the laptop battery to make it fully charge? I assume that these values are stored in EEPROM. I would like to know if there is any tool that can read/write ...
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10k views

How does limiting a laptop battery's full charge to less than 100% extend its battery life?

My laptop lets me limit how much of the battery will charge before reaching full charge: At first, I understand what the intent is. I know that overcharging a battery will result in degradation of ...
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2answers
1k views

Dell Vostro 3500 battery life remaining missing from Windows 8?

On Windows 7 a Vostro 3500 laptop shows the battery life remaining, while on Windows 8 this information appears to be missing. The percentage is still available, but the life remaining is missing. ...
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64 views

troubleshooting battery performance (toshiba satellite)

I replaced my old rankling battery with a new one, but something odd is happening, the battery reaches some level (say 30) and then jump straightly to 7% with a dialog box that normally appears when ...