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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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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19 views

Are those CPU temperature readings too high?

System specs & state: windows 8 running 15" notebook, AMD dual core m340 CPU (from 2010), 8gb ram, newly cleaned fans and internals, no unnecessary background tasks running, laptop is elevated a ...
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18 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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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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2answers
48 views

How to easily track how long my laptop battery actually lasted?

I have a new laptop battery, and I want to find out how long it actually did last before my PC went to hibernation mode (due to low battery) without me being present. I tried two stopwatches, but ...
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1answer
40 views

Retina Macbook Pro battery life [closed]

What are normal figures for battery life on the newest Retina Macbook Pro systems and what could be draining battery. I have tried all of the tips on Apple support discussions and don't know if I ...
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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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4answers
63 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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1answer
25 views

Lenova Thinkpad Edge E430 Battery suddenly decrease from 50% to 7%

I have using Lenova Thinkpad Edge E430. and i have installed windows 7 and Ubuntu. but i never used Ubuntu. The battery life used to be 3 hour, but now a days it lasts only 30 minutes. When battery ...
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1answer
59 views

Does windows 8.1 default theme drains more power?

The default theme of windows 8.1, not the high contrast theme, drains lot of power from the laptop battery? (when the laptop is not connected to the power supply). If yes, then which theme to use ...
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2answers
111 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 ...
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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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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 ...
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26 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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35 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
25 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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0answers
15 views

How best to prolong lifespan of laptop battery? [duplicate]

Is it best to run the laptop on continuous power adapter (plug in) supply OR on battery? I hear overcharging laptop battery will decrease its lifespan, on the other hand, recharging the battery also ...
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1answer
64 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
109 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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57 views

Fedora 19 heats up my laptop

I am having a DELL inspiron N5010 with 1GB ATI Radeon 550v Graphics card, 6 GB RAM and i5 2.4 GHz processor, I am running dual operating systems on this laptop while running windows 7 my laptop hardly ...
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173 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
37 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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1answer
96 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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479 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
1k 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
83 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
53 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
75 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
79 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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38 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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2k 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
276 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
259 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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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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Application to only partially charge laptop battery

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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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
79 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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86 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
69 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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83 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
280 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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145 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
240 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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2answers
1k 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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2answers
345 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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101 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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2k 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, and restart right after that. No blue screen, no hanging ...
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2answers
4k 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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4answers
1k 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 ...