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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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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2answers
9k 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
3k 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
109 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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1answer
345 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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0answers
422 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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1k 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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1answer
639 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
252 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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356 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
632 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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1answer
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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3answers
13k 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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1answer
65 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 ...
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4answers
4k views

Poor battery life Windows 8

I have an Acer laptop (AS4820TG, it's about 2 years old), and I recently installed Windows 8 to a partition I made on my SSD (now I'm dual booting 7 and 8). My laptop's always had pretty good battery ...
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2answers
335 views

Do live tiles continue to update when I'm not looking at the start screen?

If I glance at my start screen, do I need to wait a few seconds for the tiles to show up-to-date information? Or do they continue to update when I'm not looking at the start screen?
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1answer
303 views

Battery level is incorrectly displayed on Dell Studio 15 with Windows 8

After removing my Dell Studio 15's laptop battery charger I'm not getting the perfect battery level displayed in my Windows 8 task bar. At 82% it displayed 3 hr 32 min and at 75% it's displaying 2 ...
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2answers
1k views

What is the best way to switch off unused wireless keyboard in the range of working receiver?

I recently bought a Logitech Wireless Keyboard and mouse with unified receiver (Logitech Wireless Combo MK220). I did not like wireless keyboard, so I use PS2 keyboard + wireless mouse. No wireless ...
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2answers
585 views

Kubuntu 12.04 notebook battery droping fast

I have a simple problem. When I am using Kubuntu 12.04 and doing some simple stuff like IRC, Chrome, Tor and Okular, my battery lasts 1-1.5 hour. With Windows 7 and same kind of programs, it lasts ...
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1answer
12k views

Does the samsung “battery life extender” work?

I have bought a Samsung series 9 15inch (NP900X4C), and there is an option called battery life extender : Sets the maximum battery charge level to 80% to extend the battery lifetime. Samsung ...
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3answers
825 views

New HP Mini 2140 netbook battery wrongly reports 40% wear after 2 months of usage

I'm using an HP Mini 2140 with Ubuntu 12.04 installed on it. Two months ago, due to the fact that my old battery lasted only for about 20-30 minutes, I bought a new battery, which reported a capacity ...
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2answers
1k views

Is notebook battery life decreasing when fully charged and on AC power? [duplicate]

Possible Duplicate: Should laptops remain plugged in when their battery is 100% charged? When my notebook battery is fully charged and on AC power - is the battery life decreasing (because ...
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1k views

Electrical Surges And Power Outages - What Is The Proper Laptop Battery Care While Running Solely On Battery? [duplicate]

Possible Duplicate: Should laptops remain plugged in when their battery is 100% charged? What is it that kills laptop batteries? Because of convenience, I had to move my laptop to another ...
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5answers
10k views

How do I keep a MacBook battery charged to only 70%?

A chemist told me that a battery should be charged to and used between 30-70%, and its very bad for battery life to completely load or unload it. He uses a utility program that always keeps the ...
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1answer
223 views

Can you disable the GPU on a Macbook Air?

Can the graphics processing unit (GPU) be disabled on a 2011 Macbook Air as a means of increasing battery life?
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3answers
5k 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 ...
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1answer
172 views

Prevent hardware from loading or consuming (battery) power?

I'm using an Asus Zenbook UX32VD notebook and would like to maximize its battery life. Would it be useful for me to disable devices that I do not use, such as the internal bluetooth device? Also, ...
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1answer
147 views

Is there an adapter that will allow me to plug my power source directly into my battery?

I know there are "external battery chargers for laptops", but I would like to know if there is an adapter that will plug my existing power source directly into my battery. Does such a thing exist and ...
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2answers
802 views

Replace Optical Drive with SSD, affect battery life?

I'm getting a System76 laptop, and they have an option to replace the optical drive with an HDD/SSD + caddy case. That would be nice, because I don't use DVDs nowadays, and need a lot of storage. ...
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3answers
418 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 ...
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1answer
971 views

Performance and Battery Life

Okay, I'm looking for hard evidence to settle an argument. From a developers perspective, the argument of CPU usage and battery life comes into play often. If a CPU is throttled to use 10% of its ...
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1answer
1k views

battery laptop always 0% cannot fully charged

i have laptop Toshiba l645 and the battery cannot fully charged (always 0%). How make it back to normal ? In windows 7 i ever try safe mod and it is still 0%
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2answers
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Laptop battery charge management software [closed]

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 ...
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2answers
4k views

Why is keeping my Mac battery 40%-80% charged advantageous?

This article from Lifehacker notes that keeping my Mac battery 40%-80% charged is advantageous. ...
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1answer
955 views

No longer get battery notification or action

I have an Asus n43jf laptop running Windows 7 64-bit. The laptop is a little over a year old. Up until very recently, when the battery would run low, I received a low battery notification, and if I ...
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3k views

My battery doesn't gets charged beyond 98% now-a-days

My battery is not getting charged beyond the 98% mark. I know battery losses maximum capacity with time but my question is ideally isn't it supposed to show 100% charged but actually get only 98%? In ...
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3answers
739 views

Laptop/Battery: Should I remove the pack with mains/AC on?

Does a fully-charged battery supply power to a laptop/notebook if the mains is connected? Does it behave like a mobile-phone (which needs a battery)? Will the battery-life be improved if it is used ...
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2answers
100 views

Battery Life: 1and half to two hours

Is the battery life of 1 and half - two hours vbad for a new laptop? Is this value very low? I have a HP 4320s Laptop (which comes under the category of Corporate Laptop), i3 Processor, almost nothing ...
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5answers
14k views

Logitech M705 Wireless Mouse: Are the batteries dying, or does the device have a hardware failure?

I have a Logitech M705 wireless mouse. I'm first time using a wireless mouse, so I don't have much experience with the hardware features and behavior. It is rated that it runs for 3 years with the ...
4
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1answer
2k views

Should I overcharge mobile phone before first using? [closed]

When I first buy a mobile phone or phone battery I used to know i should charge it about 8-10 hrs switched off the phone. But i don't know if its actually necessary to overcharge a battery for its ...
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1answer
728 views

Is there anything to do with a dying li-ion battery when it's nearing its end of life?

Should I keep it in the fridge? Should I constantly discharge and recharge? Should I keep my hopes up or should I buy a new battery?
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1answer
156 views

How to find out how much battery life remains on a tablet?

For example I have 2000 mAh. How do I calculate how much longer my device will stay on?
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1answer
589 views

Battery life on netbook with Linux Mint 10 vs 11

I have bought a new SSD for my Eee1000HE, and want to run Mint on it (I prefer the look and feel over Ubuntu). I read somewhere that the version 11 ran on some newer version of the kernel that had a ...
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4answers
2k views

Wireless Keyboard/Mouse: Should batteries be removed when not in use?

I recently bought a Logitech Wireless Keyboard and mouse. I use it almost daily but for a couple of hours only. The keyboard has 2 AAA batteries and the mouse has 1 AA battery. The box mentions that ...
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1answer
975 views

Virtual-machine software with least overhead on a Windows host

Which virtual-machine software (i.e. VirtualBox, VMware Server, etc.) has the least overhead, with support for installation on a Windows host? The reason overhead is an issue is due to battery life ...
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4answers
605 views

Are laptop batteries repairable after failing to hold charge?

The laptop battery for my Compaq Presario CQ40 seems to be broken because it does not charge any more when connected to the mains. Can this be repaired or I should call it end of life and replace it? ...
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2answers
961 views

Battery management of a Macbook

I bought a Macbook Pro last week. I mostly use (and plan to use) it like a desktop with an external monitor. I use the system at least 15 hours a day. Now using the coconut battery application, I ...