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

5
votes
4answers
4k 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 ...
0
votes
1answer
496 views

Ubuntu app to keep track of battery life

I'm running ubuntu on my netbook, and I wanted a simple piece of software to keep track of how long the PC manages to stay on while on battery power. It could be something that automatically kicks in ...
3
votes
7answers
16k views

Why is my battery life running out so fast in my laptop?

I have a Fujitsu Siemens v5535 Esprimo Mobile. The battery drains fast even though I just bought a new one. What could this be attributed to?
2
votes
2answers
3k views

Acer Aspire One — strange battery problem, charges only up to ~90%

I have this strange problem on the acer aspire one d250. It happened already once before, stayed for about two weeks, and then "fixed itself". The problem is as follows: the battery can't seem to get ...
0
votes
3answers
295 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 ...
1
vote
1answer
415 views

Can I replace battery of My HP Pavilion DV6 2020e notebook to work for 3-5 hours?

I bought HP Pavilion DV6 2020e notebook from 6 months and i found that its battery last for max 70 minutes and i contact hp support and they told me that this model can last for max 90 minute ...
2
votes
1answer
2k views

Toshiba Qosmio: Battery Stuck at 60%, does not Charges, PC can't power up, can't remain on with out AC adapter

Just like the tittle says, now let me try to give some more detail about the symptoms; The battery is stuck at 60 percent (68% at the moment of this writing).When hovering over the battery icon in ...
2
votes
3answers
373 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 ...
2
votes
6answers
491 views

A list of 'best practices' for extending the life between charges of a notebook battery

I'd like to compile a list of best practices for getting the most out of a single charge of a typical notebook battery (be it Li-Ion or Li-Poly). Sources would be great as well. I've heard, for ...
5
votes
1answer
781 views

Any tips to extend battery life under 'Bootcamped' Win 7

I have a late 2008 MacBook and have recently installed Windows 7 via Bootcamp. Under OSX I can get about 4 hours of web browsing and general usage but under 7 that is slashed to about 2 hours. I ...
2
votes
3answers
993 views

Turn off additional cpu cores while on battery

I'm currently an running a quad core processor on windows 7 and was wondering if there is a way to turn off unneeded cpu cores while I'm running on battery to extend battery life it would be nice to ...
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 ...
1
vote
4answers
947 views

New Macbook Pro battery

What kind of batteries are used in the new Macbook Pro? Should the battery be periodically fully discharged? What are the best practices for this battery?
2
votes
1answer
281 views

Laptop battery liftime from Dell specs?

Question: When I buy a Dell Laptop, I get the following choice for battery: (Lithium-Ion main battery with X cells and Y Wh [included in price/at additional $] Lithium-Ionen-Hauptakku mit 4 Zellen ...
1
vote
2answers
363 views

Vista Low Battery Life Notification Application

I am looking for a program that will minimize all open applications and display a pop-up box saying that the battery has reached a certain level or percentage... Has anybody heard of such an ...
5
votes
3answers
21k views

Re-Calibrate Toshiba battery meter with Windows 7

I have a Toshiba U300 laptop. Back in the olden days (circa-2000) you could re-calibrate the battery meter from the BIOS when your battery was no longer reading accurately. My battery was shot, so I ...
47
votes
6answers
13k 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 ...
0
votes
1answer
804 views

Lenovo (T500) battery manager

First of all, sorry for asking 2 questions on one day (the two are totally unrelated). I've got an extended brand Lenovo battery and a Windows 7, with the Lenovo made power manager for Windows 7. My ...
2
votes
8answers
1k views

Real battery life numbers with Asus EEE 1000H?

I am looking to buy a netbook with the longest possible battery life. There are many questions dealing with the topic of battery life in netbooks, but very few replies contain precise numbers. So, my ...
2
votes
1answer
331 views

Macbook Battery Charging Troubles

Problem: Occasionally, my macbook's battery will say it's charging and actually won't be. It stays at 0% for a long time. Other info: I thought it was my battery (laptop was 3 years old). Got a new ...
1
vote
3answers
4k views

Macbook pro asks me to “Service Battery”

A couple of weeks ago I checked the battery and at that point in time (after 160 load cycles) it still had a capacity of 5000 mAh. Today, my 2006 macbook pro tells me via the battery menu to ...
0
votes
2answers
1k views

custom threshold for charging laptop battery

In order to avoid unnecessary recharge cycles on Ubuntu, is there a way to set the threshold determining when the laptop battery is being charged? Perhaps a manual switch to disable charging ...
0
votes
2answers
3k views

iPod Charge - How to find out without disconnecting it from Computer

How do I find out how much my iPod has charged without disconnecting it from my PC (Safely Remove Hardware and all). I connect my iPod to the USB port of my PC and it instantaneously fires up iTunes. ...
0
votes
2answers
2k views

What is the best way to know Apple Remote Control battery status?

Is there any way to know the Apple Remote Control battery status from my Mac OS X?
3
votes
6answers
4k views

Very poor battery life on Lenovo ThinkPad W500 laptop

I have a new ThinkPad W500 laptop (w/ 9 cell battery) running Windows 7 RTM 64-bit. All drivers* and BIOS are the latest. Battery life appeared poor so I performed several tests under the following ...
9
votes
6answers
11k 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? ...
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 ...
1
vote
2answers
3k views

Sony Vaio, Battery Problem; Never at 100%?

Every time I recharge my sony vaio, it'll recharge up to 100%. However, in the morning as I unplug it from the recharger, the battery life is always at 80-89% when I begin to play. Why isn't it at ...
4
votes
2answers
240 views

Performance for Intel's new Low-Voltage CPUs

I've been laptop shopping recently, and I'm intrigued by the Acer Timeline series. It seems to fit somewhere in between "netbook" and "power laptop" performance-wise, and is rated at 8 hours battery ...
25
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? ...
152
votes
6answers
65k 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 ...
113
votes
9answers
42k 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?
6
votes
6answers
5k views

Can I reduce the CPU speed of my MacBook when on battery?

I've got a MacBook with a Core 2 Duo CPU. I've got CoreDuoTemp installed which can show the current speed of the CPU. It appears to always show: Mini : 1.0 GHz Maxi : 2.0 GHz Current : 2.0 GHz I ...
7
votes
6answers
1k views

Turn off monitor on del Vostro 1500 while laptop in use?

Since I'm blind and use screen reading software I don't need to use my laptop's monitor and it's nothing but a battery drain. Is there a way to turn off the monitor on a del Vostro 1500 laptop while ...
2
votes
4answers
245 views

Common battery life tips for any device

Even though many devices are very different, there are often common settings or features that can be turned off (or on, in some cases) to get better battery life, such as background lights. What are ...
2
votes
3answers
349 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 ...
8
votes
3answers
285 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 ...