Batteries are the embedded power-source of a component such as a notebook. It is composed of cells of chemical elements that store energy.

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3answers
2k 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
1k views

Laptop battery - 100% available but says charging

My laptop charger suddenly went off while connected to the laptop, I tried to reproduce and noticed that the battery is 100% full and Windows says it is still charging. Why does Windows keep charging ...
0
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0answers
240 views

Dell BIOS update appears inefective

My Dell XPS M1330 currently has BIOS version A11 which is too outdated to install windows 7 Home Premium. I followed the instructions on the Dell support site, downloaded the appropriate BIOS update ...
0
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0answers
423 views

Switching to pre-mavericks low battery notifications OS X

I turned off notification center on my mac because, well, I despise it. The one notification I want is a low battery warning, but that has been moved into notification center on mavericks. Is there ...
0
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0answers
94 views

What is the most effective way of using a MacBook Pro with an external monitor?

I have an early-2013 MacBook Pro with Retina Display 15-inch and it has been working amazingly for the past year. I spend around 8 months at school and 4 months at home. In school, I need the laptop ...
0
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1answer
30 views

tablet + wired network + recharging

Can any tablet simultaneously recharge and use a non-wireless network? The goal is like an always-on kiosk-like touchscreen, in a location that forbids wifi. Ethernet (not Internet) would be e.g. ...
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votes
1answer
64 views

what happened to laptop if it suddenly die without the battery and it is due to power failure, [closed]

I do remove the battery every time I used it for long hour, is this bad and it can damage the hardware and it if can damage hardware what hardware it is. Can also give me advice what should I do in ...
0
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1answer
119 views

What are the negative effects of a flat CMOS battery?

Recently I have noticed that my computer has been starting up with the time and date incorrect. Given that my motherboard is about 7 years old I'm guessing that the CMOS battery is flat (or close to ...
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0answers
118 views

Should a laptop battery be 100% healthy out of the box? [closed]

I recently purchased a brand new Dell laptop. An immediate test of battery health showed that the battery was only charging to 82% of its designed capacity. That means it can be charged only up to 39 ...
0
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0answers
18 views

adapter with 19.5 v - 3.33 A.. compare my original adapter +19 v - 4.74 A.. is it okay for using it? will it harm my laptop? [duplicate]

my current adapter with 19.5 v - 3.33 A.. compare my original adapter +19 v - 4.74 A.. is it okay for using it? will it harm my laptop? please help me with your great information. thanks
0
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2answers
104 views

Laptop battery will not hold charge after spillage

I had a spillage on my laptop (white wine if you're interested). Thankfully the laptop seems to have survived however the battery no longer holds a charge. What makes this unique (from searching ...
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0answers
60 views

HP 630 notebook loosing battery charge without any reason

I have a HP 630 notebook that runs on Windows 7. I think its loosing battery without any reason. I felt so because, its not showing the same battery charge level when switched on. So I decided to ...
0
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1answer
51 views

Benchmark performance 30% speedup in mains over battery operation?

This observation arose as I was evaluating the running time efficiency of various implementations of a prime sieve algorithm. The surprise was finding that differences between the best algorithms was ...
0
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1answer
125 views

Laptop suddenly gets turned off at charging 45%

Mine is acer aspire S7-392-9890 model ultrabook and It is very new. I just received it yesterday! I am totally happy with it except the charging. It really put me in shock when it first turned off ...
3
votes
2answers
563 views

How can I make my Samsung Series 9 laptop charge the battery to 100%?

I use a Samsung Series 9 laptop running Windows 7. I notice that when I connect my laptop to its charger, it charges the battery up to 80% and stops there. I believe this is to extend long-term ...
1
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0answers
44 views

How can i get the pinout of 6510b battery? [closed]

I need to create an external charger for the battery. I am looking to know the battery pinout configuration. Please guide me. Thanks.
0
votes
1answer
276 views

Why Windows 8 is giving low battery warning sometimes at 7%, sometimes at 10%?

My Windows 8.0 behaves inconsistently with low battery warnings. Sometimes I receive it at 7% of battery, sometimes at 10%. I thought it depends of current power plan, but settings of ALL plans are ...
0
votes
0answers
49 views

How do I disable new device detection in Windows 98? System freezes when installing ACPI Battery

So, I have Preperad an external USB HDD in VMWare with Windows 98 SE on it and unofficial Service Pack 1 and 2 installed. It works fine in the machine (windows 98 SE boots nice FROM USB! wow, in the ...
2
votes
2answers
273 views

Can using a under powered laptop charger make my notebook shut down under heavy load?

I have a XMG P501 gaming laptop based on Clevo P150HM models at the moment connected to an under powered laptop charger. It is shutting down when under heavy load (3dmark, some games in particular) ...
0
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1answer
50 views

Battery Notification

I brought a new Toshiba laptop battery. It is getting a charge and when unplug power it discharges, but it doesn’t shows the battery notification when the battery becomes low. Instead it will get ...
0
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0answers
30 views

Random battery life display on laptop

I have a problem with my laptop, mainly the battery display always shows battery is at 100% capacity with random time left ( like 70 hours left), the computer shuts down without any warning since I ...
6
votes
2answers
264 views

UPS - practical maintenance advices to help end-user keeping batteries (classic lead acid models) in good shape

I have read that most (maybe all?) UPS devices for personal computing have lead-acid batteries inside. As long as its chemistry, compared to lithium-ion, is very different, I would like to know ...
4
votes
1answer
706 views

Why has my Battery Icon stopped updating in Linux?

I noticed something funky happening over the past week. My battery icon stopped updating. For a more specific definition, here's the expected and current behavior in detail: Expected Behavior ...
0
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0answers
148 views

CMOS battery lifespan

How long does it take for a CMOS battery to STOP working since the first instance of a failure. For example, if a CMOS battery fails on Jan 1, but then works without problem until May 1 (four months ...
0
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0answers
380 views

Battery icon says charging - but its not really plugged in. Samsung notebook win 8.1 issue

I have a series 9 samsung laptop recently upgraded to 8.1. It suddendly stopped charging the battery when it is ON, but it does when its turned off or sleeping. Therefore I beleve its software ...
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0answers
12 views

Debugging power on issue

First off I don't know if this is the correct fora, for this kind of question. My personal Acer Aspire 5745G has an issue, namely that it usually has issues powering on. The issue is that when the ...
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2answers
206 views

Can I charge my laptop using an External laptop charger?

How can I charge my Gateway laptop without using a computer? My battery cannot be charged onn the computer because the mother board is damaged.
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0answers
709 views

Macbook Pro 2011 Battery won't charge after it drained out 100% plus can't boot

My macbook was working fine until my magsafe charger's pin got broken. I unplugged magsafe charger as it was not charging and had faint green light. I continued to use Macbook until all of the battery ...
0
votes
1answer
76 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 ...
0
votes
1answer
52 views

Is my laptop's battery dangerous?

I've been using a battery in my laptop for 3 years and I've kept it in fairly good condition until now. My routine was to keep it plugged in most of the time but use it on battery once or twice a week ...
17
votes
6answers
4k views

Does more RAM usage cause more battery usage?

I'm using a 2 year old 15" AMD laptop running Windows 8, and its battery life is not as long as the brand new ultrabooks for sure. In the place I'm currently working I don't have access to a power ...
0
votes
1answer
127 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 ...
0
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0answers
28 views

Hp laptop freezes when power plugged in

I am using HP-8510p Laptop my problem is when I plugged in my charger it stop working and all the things got freezes. I have changed following settings but no result: Removed the battery and pressed ...
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1answer
52 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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1answer
417 views

Ubuntu laptop powers off without warning very soon on battery

Problem: I have a laptop. It works very well on AC power, but on battery power, it powers off in a few minutes, if not seconds, without warning. I saw lots of similar problems not only from SU, but ...
2
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0answers
540 views

My laptop won't power on after an unexpected shutdown

I have an HP 6930 Elite book. I was just charging it in the afternoon yesterday while making a Word document on it and it suddenly got shutdown. No warning, no alert, no notification, just a sudden ...
0
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1answer
53 views

How to control charging cycle on Windows? [closed]

I was wondering if there was an application that would manage charging cycles of my notebook. I mean it would discharge from 100% do like 10% and then start charging to 100%. It would be good for my ...
0
votes
0answers
36 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.
0
votes
1answer
41 views

What's the longest expected service life for PC laptop batteries

Have there been studies on which manufacturer's battery lasts better for the long term? I'm thinking of a comparison like they do with hard drive wear-and-tear. I'm not after who could give me the ...
0
votes
1answer
56 views

What are the other compatible batteries for acer travelmale P253-M? [closed]

I've a acer travelmate (ntebook) P253-M, whose battery I'm trying to replace. My question is: is there any other batteries that could be used instead of the exact model? For example, do I have to use ...
-1
votes
1answer
55 views

Dead battery in brand new acer travel mate, have the warranty, how to repair? [closed]

Couple of days back I bought a brand new acer travel mate 253-M from amazon.de, but the battery is not being charged at all, seems the battery is dead. I'm not located in Germany, but I have the ...
2
votes
2answers
345 views

Why battery indicator doesn't behave linearly with amount of time remaining on windows 7

Just out of curiosity, I wanted to know why does battery indicator is not linearly related with the amount of time i.e. If we see the screenshot which was taken at 4.55 PM , it said battery percentage ...
1
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0answers
16 views

Using Perl to communicate with Nut

I'm trying to communicate with my UPS that's managed using NUT. I want to read values from it like line voltage, battery charge, etc. I don't want to send it commands to shut it down. At first I was ...
1
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0answers
98 views

Can short circuiting kill a USB cable?

I have a power strip and four things were connected to it. My air filter, laptop, Samsung Galaxy Tab, and Motorola Droid 4. For the phone and the tablet, there are actually 2 components to the ...
0
votes
1answer
243 views

Battery recharge functionality broken due to short in AC adapter?

I have a problem recharging the battery of my netbook, an ASUS Eee PC 1025C. Since last week the LED of the AC adapter doesn't light up when it is connected to the wall. The netbook won't turn on ...
1
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4answers
2k 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
votes
0answers
18 views

Battery detection issue

I have compaq presario cq40 model. Recently I purchased new original battery but while starting laptop with direct power supply battery is not detected & not getting charged. what may be the ...
0
votes
1answer
84 views

Acer TravelMate 253M, battery not being charged

I bought a new Acer TravelMate notebook 253M today. When the charger is connected with the laptop, it is on, or I can switch it on, but it always shows the battery is empty or cannot find the battery. ...
0
votes
1answer
411 views

How to initialize a lithium-ion battery?

I just bought a lithium-ion battery for a Lenovo ThinkPad T61, and frustratingly it displays being able to charge only at 91% of its design capacity (65.16 Wh out of the designed 71.28 Wh). ...
0
votes
1answer
601 views

Bad Clock Battery on an HP Probook 4525s

How can I tell if the clock battery is bad in a HP Probook 4525s? My PC does not start when pressing the power button but the caps lock light flashes twice.