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

learn more… | top users | synonyms

121
votes
10answers
46k views

Is it better to use a laptop on battery or on AC power?

When I'm at home, is it better to use the laptop plugged into AC power, or with just the battery, for the overall battery life?
168
votes
7answers
71k views

Should laptops remain plugged in when their battery is 100% charged?

When your laptop's battery is 100% charged, should you leave it plugged in so any battery power doesn't get used, or will that cause overcharging, overheating, etc.? Should the laptop be unplugged ...
49
votes
6answers
15k views

What is it that kills laptop batteries?

There are many superstitions on what you must never do lest your battery become worthless - and by worthless I mean hold about 16 - 24 seconds of charge. This has happened to every laptop I have ever ...
19
votes
8answers
880 views

What are some good practices for making sure my laptop battery serves its full life?

Basically, I'm looking for some do's and don'ts. Is it bad to keep my laptop plugged in when I'm not using it (majority of the time)? Is it bad to plug it in once I've finished using it (with it ...
26
votes
4answers
2k views

Battery Life Practice

What should i do with my battery to have it live the longest? I was told the few first timing it i should let it completely drain then charge it. Should i leave it completely drain for a few days? ...
13
votes
8answers
6k views

Do newer laptop batteries still need to be drained before recharging?

10 years ago when I was doing hardware support it was best practice to fully drain a laptop battery prior to recharging in order to maximize its life. Is this still the case or can a battery now be ...
5
votes
5answers
5k views

Battery charge suddenly drops from about 25% to 6%

I own a Lenovo Y500 series laptop. The battery being an year old lasts only 1 hour. But the strange thing is that, when the charge comes down to 25-20 it drops to 6%(critical battery level) in a ...
8
votes
3answers
287 views

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

I'm a big fan of portability and battery life. I want to take the most out of a single recharge. Any tips to accomplish that? Things on top of my mind: Voltage reduction (with RMClock, any better ...
9
votes
6answers
12k views

What is the impact of leaving a laptop in “sleep” mode (while on battery power)? [closed]

How much battery would leaving my laptop at "sleep" mode consume? is the consumption low enough so that it would be safe to leave the laptop sleeping at nights regularily and using it tommorow? ...
3
votes
2answers
12k views

Laptop battery charge management software

I work on a HP laptop plugged in most of the time, and after few months the battery went off-duty. Of course, I could remove the battery each time the laptop is plugged and place it each time I must ...
2
votes
3answers
345 views

Increasing Laptop Battery Service Life [duplicate]

Possible Duplicate: What are some good practices for making sure my laptop battery serves its full life? I use my laptop as a replacement for desktop. I generally use it for 6 to 7 hours a ...
6
votes
3answers
8k 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 ...
6
votes
2answers
3k views

Does it save battery to have your desktop background set on a dark color?

Do you think that a laptop consume less power when the color displayed on the screen is darker ? (And even less when the color is totally black) ? I don't mean reducing the brightness or contrast ...
3
votes
3answers
4k views

Macbook Pro + Windows 7 (bootcamp) = Terrible battery life

I recently put Windows 7 Ultimate x64 on my wife's Macbook pro because of some software she bought for her business. Since then, the battery life has been abysmal. I've identified and researched ...
2
votes
3answers
351 views

How can I maximize my battery global lifetime?

My laptop is used as a desktop computer, and is always plugged-in. I heard that battery should be fully discharged/recharged at least once a month. Is that true? Are there other efficient ways to ...
0
votes
1answer
183 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 ...
0
votes
3answers
308 views

When to use laptop battery? [duplicate]

Possible Duplicate: Is it better to use laptop on battery or on AC power? When laptop battery is fully charged, what is the best for battery life : use the battery or to use AC adapter (in ...
4
votes
1answer
3k views

Calibrating a battery

I have a laptop and I would like to know how to calibrate my battery.
3
votes
3answers
7k views

Software to show battery life of laptop? [duplicate]

Possible Duplicates: Find time to charge in windows 7 How can I always display the remaining battery time on the Windows 7 taskbar? What is a small, free piece of software I can use to ...
0
votes
2answers
65 views

Will stopping a charge cause a decreased life span of the battery

Occasionally, I need to stop battery charging, for example at 50% due to emergencies. Will stopping a charge cause a decreased life span of the battery? Also, will leaving battery plugged in when ...
3
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 ...
3
votes
2answers
2k 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 ...
3
votes
1answer
15k views

Low battery notification doesn't show up in windows 7

On my Lenovo Y410 model laptop I've installed Windows7. Earlier I used to have Windows XP. In XP I used to get low batter notification when my battery reaches 10% life. In Windows 7 I've even set the ...
2
votes
2answers
6k 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 ...
2
votes
3answers
379 views

Battery on or off while running the laptop on electricity? [duplicate]

Possible Duplicate: Should laptops remain plugged in when their battery is 100% charged? I have an HPcompaq nc6400 but I don't have much information about batteries.when I'm home I run it ...
0
votes
3answers
62 views

laptop battery usage with AC supply

Does the laptop battery get affected by A.C. supply? Does the life of the battery gets affected if run our laptop continuously on A.C. power? All the laptops run on A.C. power when getting fully ...
0
votes
0answers
671 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, ...
0
votes
2answers
341 views

How can I downgrade from Windows 7 to Windows Vista?

My system came with Windows Vista business install on D partition. My friends told me about windows 7 and I decided to check it out. Since I installed it on my laptop, the caliberation of my battery ...
0
votes
3answers
218 views

Doubt about laptop batteries [duplicate]

Possible Duplicates: Is it better to use laptop on battery or on AC power? What is it that kills laptop batteries? I've heard that using a laptop computer on battery mode on a regular ...
-1
votes
1answer
63 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 ...
-1
votes
2answers
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 ...