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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48 views

Is it okay to store a laptop for one year without taking any precautions [duplicate]

No precautions have been taken to store the computer. It is sitting upstairs on a bookshelf. It is an HP pavilion laptop. I read this Super User blog. I don't understand if this computer will ...
0
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1answer
19 views

how to correct first battery discharge for smartphone

I would like to know how to take corrective action on the first charge cycle. I have just bought a new smartphone and completely discharged before full charging. However i just came across articles ...
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0answers
16 views

Lenovo battery not charging when in use

I received my NEW Lenovo lap top G50 computer and when I am using the computer, I have it plugged in and "charging" but it does not charge. If the computer is shut down and plugged in, it will ...
0
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1answer
36 views

Low CMOS battery but it's brand new [closed]

When booting my old PC it says low CMOS battery so I replaced it with a spare battery which I bought a few years back. Upon booting from power-off state, it still says low CMOS battery. Is it ...
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3answers
38 views

How to make laptop's battery last long? [duplicate]

My uncle warns me to use laptop after charge.But sometimes I use it during charging,like...when I am watching videos or working my homework.I want to know that is that good to use laptop during charge ...
0
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1answer
33 views

Intel Broadwell Power Consumption and Clock Speed

I'm configuring a new MacBook Pro 15″ 2015 and wanted to know if the processor speed affects the battery life (power consumption) assuming that the work load is identical? 2.5GHz Quad-core Intel Core ...
0
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2answers
113 views

Is it fine to run a dc motor through USB cable connected to my laptop?

I have a dc motor which needs more than 10V to run efficiently, so instead of running it on electric cells, I usually run it using my laptop's power. I connect a USB cable to my laptop and the other ...
1
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0answers
22 views

How can I set a 80% battery charge limit for a HP Ultrabook? [duplicate]

I really hope you can answer this simply request. Nowadays is pretty common to have a new Ultrabook, laptop or notebook for general purposes. A very important feature is to have a healthy battery. ...
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1answer
358 views

Alternative to Lenovo “Conservation Mode”

I have a Lenovo Y50-70, which I am doing a clean install of Win8.1 on (A new SSD) The Battery software that comes with it out of the box contains a very useful battery conservation mode. This stops ...
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1answer
152 views

Run time difference between a 4-cell (43 Wh) battery and an 8-cell (58 Wh) battery?

Is there a significant improvement in battery run time going from a 4-cell (43 Wh) battery to an 8-cell (58 Wh) battery? How much longer will it run (percentage-wise)?
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0answers
41 views

How do I disable devices to conserve power?

I run ArchLinux on a Lenovo G series and downloaded powertop and it says that USB bluetooth and "USB device: Lenovo EasyCamera" are drawing a lot of power. While it advised I implement these rule: ...
5
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2answers
114 views

Brand new laptop, two years in storage, will the battery be ok?

I have an opportunity to buy a brand new (sealed box) EliteBook 8470p laptop for a good price. The date of manufacture goes back to around March 2013, which is bang on two years ago. Given that it's ...
2
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1answer
67 views

How does windows calculate time left for a battery?

I assume the relatively new versions of windows calculate the battery remaining the same. If not, to avoid broadness, show the calculation for windows 8/8.1.
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1answer
770 views

Does “use hardware acceleration when available” feature in google chrome consume more battery?

I want to know when i enable "use hardware acceleration when available" feature in google chrome, it consume more battery? what is the advantage of this feature? is it better to enable or disable this ...
0
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1answer
134 views

Connected Standby eats battery when wlan is down

I use a surface pro 3 and connected standby usually works like it should: I close the cover, the surface enters standby mode, when.I open it hours later it's immediately ready and barely lost battery ...
0
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2answers
70 views

For better battery backup whether we have to start charge the laptop when battery about to drain? [duplicate]

I recently purchased a laptop ,I have get suggestions from so many people that we should start charging laptop when battery is about to drain and the reason I am getting is battery will last for ...
0
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2answers
123 views

How to measure how long it take's for a laptop's battery to charge

I have the following scenario: I am testing several laptops with Windows 8.1 installed. One of the tests is to measure how much the battery lasts. For this task I use benchmarks like PeaceKeeper or ...
0
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1answer
269 views

My laptop battery discharged in sleep mode?

My laptop computer is an Acer Aspire M5-583P-6428 touch screen laptop computer. Its specs are as follows: Intel i5-4200u Quad-Core Processor Intel HD 4400 Integrated Graphics 500GB hard ...
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3answers
629 views

Why does reducing CPU frequency improve battery life?

Shouldn't we have roughly the same battery life regardless of the frequency since the higher the frequency is, the faster tasks will complete so in the end the CPU, despite running at a higher ...
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1answer
429 views

How do I turn off MagSafe light?

When I go to sleep at night, the two green lights (emitting from both sides of the MagSafe connector of my 13" MacBook Air's power adaptor) light up my whole room. How do I turn these off? I ...
0
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0answers
288 views

Force-reset laptop battery statistics

On my Acer Aspire S3 laptop-of-almost-3-years BatteryInfoView says that the battery's capacity is at roughly 35%. So, whereas once it would hold for 4,5 hours, now it's down to 1:45 at best. However, ...
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1answer
2k views

How to get rid of “Consider replacing your battery” warning in Windows 7 power settings

When I turned on my laptop (Acer Aspire S3-951) today, I saw the following message under the power icon. I know that my battery is 61% degraded, but how do I get rid of the extra text that says my ...
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1answer
865 views

What is the “known hardware incompatibility” that disables PCIe Active State Power Management? How do I fix it?

I'm on Windows 7. I just ran a Power Efficiency Diagnostics Report through powercfg -energy and I got this error: Platform Power Management Capabilities:PCI Express Active-State Power Management ...
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1answer
12 views

Buying the correct battery

Looking at getting a new battery for an HP elitebook 2560p. However, there are many 9cell batteries running different mAh from 6600mAh to 9000mAh. Is there a big enough benefit in buying a 9000mAh ...
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0answers
26 views

Am I ruining my laptop battery? [duplicate]

I have a brand new Asus ux303ln. The laptop is fine but I use it mostly for work. That is: le laptop is continuosly plugged in, on charge. I am worried whether this can reduce the life of my battery ...
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2answers
8k views

Enable Lenovo's “conservation mode” on boot

I have a Lenovo Z50 laptop with Lenovo's Energy Manager installed. Inside the manager's settings menu is an option to enable "conservation mode", which keeps the battery charged in the 40-65% range ...
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0answers
59 views

Laptop suddenly off without notice the battery level

My laptop is HP Probook 4540s and running on Widows 7 32bit OS. My battery may be week now. But the problem is Laptop suddenly off without notice the battery level. Not shutting down or hibernateing. ...
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0answers
64 views

How should i use my new lenovo laptop(power supply)

I usually keep it at home. Is it alright to use it plugged in? I don't want to mess up the battery. I love how smooth the laptop runs plugged in and i dont want to strain the battery by changing ...
2
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0answers
42 views

Is there a way to estimate the current life of my ancient phones battery? [closed]

I have a 3 year old S2 and I wonder if there is a way to estimate how much weaker than new the battery is right now? Something like a percentage (50% of new) or effective capacity(1000 mAh). Is this ...
2
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2answers
606 views

Why is there such disparity in battery life between wireless mice?

When comparing the specifications of wireless mice, the battery life figures I encounter (as reported by both manufacturers and users) can be wildly different, even between similar mice. For example: ...
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2answers
72 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 ...
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0answers
31 views

What depth of discharge does 0% in a UPS correspond to?

When a UPS like an APC Smart-UPS shows 0% charge remaining, does it mean the deep-cycle batteries are completely discharged or that they're at 20%?
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1answer
495 views

Extremely Wrong Battery Life

I am running Windows 8.1 on my Dell Inspiron 15", and when I click on the battery icon, it shows an outrageous battery life, which makes no sense: like 58 hours and 44 minutes (42% remaining). How ...
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3answers
72 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 ...
2
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3answers
10k views

Lenovo laptop: Is it ok to leave the battery charging while it is being used? [duplicate]

Is it ok to leave the battery charging while it is being use? Or is it ok to keep the power plugged in with full charged battery while the laptop is in use? Can this shorten battery's lifespan?
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1answer
404 views

Is it worth replacing a laptop battery? [closed]

I have a Toshiba Satellite U300 from around 2007. It works fine but the battery is dead so I have to plug it in everywhere. I can get a replacement battery for around $100. What sort of battery life ...
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0answers
130 views

Samsung Ultrabook Series 5 Cuts out with 50% + battery life left

Initially with 100% battery charge, laptop shows time remaining of around 8 hours. Then with an hour it drops constantly before shutting down without warning when the battery showing around 60% ...
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1answer
102 views

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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0answers
144 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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1answer
181 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
118 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 ...
0
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2answers
1k 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 ...
0
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1answer
286 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 ...
0
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0answers
46 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.
2
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4answers
9k 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.
0
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1answer
97 views

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

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
229 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 ...
2
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2answers
9k 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
304 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
229 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 ...