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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26 views

Battery only charges when Laptop is off

My laptop only charges when it is off. If I try to charge it when it is on it says "plugged in, not charging". I just got it 3months ago and I've not changed its battery or charger. My Laptop is an Hp ...
1
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0answers
10 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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0answers
19 views

Good lightweight linux distro that reduces battery consumption greatly? [on hold]

I want to install Chromium Os, but i don't know exactly how much battery it consumes, or if it is lightweight and needs little hardware and is fast. Yes I'm aware Chromium OS is a web based linux, but ...
0
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0answers
9 views

Thinkpad E420S powers on but doesn't boot for 15-20 minutes

What exactly is happening is: I shutdown/hibernate the laptop after using the day before and go to sleep The next day when I turn on the laptop - the thinkpad 'i' lights up (stays up) and the fan ...
0
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1answer
29 views

Can't start Windows 7 after hard shutdown

Something funny happened. I develop artificial intelligence software on my Dell Inspiron 17R, so I frequently have to deal with very large datasets in Java. Here we go. Last night, I was performing ...
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0answers
25 views

Would intermittent contact with the service voltage and capacitors in a power supply (inrush current) damage a computer?

If I plugged my laptop AC Adapter power cable into a UPS, causing sparks to blast out (and being unable to insert it due to the UPS being seemingly not designed for this type of plug, for whatever ...
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1answer
28 views

Linux does not recognize my new laptop battery

Hi there I just bought a new laptop battery for my acer 3820tg, connected it but looks like my Linux Mint 17 can not recognize it. Battery led on laptop is blinking by orange color and acpi command ...
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0answers
18 views

HP pavilion dv6 blank screen, power but no hd Led

I have been dealing with this HP dv6 all day with no luck. Working fine yesterday but today I get nothing but a blank screen. I can hear fan come on, and a few keyboard lights come on, but nothing on ...
0
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1answer
16 views

Disconnection laptop/notebook power supply

I need to alter some settings in my BIOS and the process requires me to switch off my computer and disconnect my power source. ...
12
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3answers
777 views

Laptop Either Shows 100% or 0% Charge

I have a strange issue with my Compaq CQ 61 running Windows 2012 (server) and I have Googled for it really long and hard and also searched other questions here but in vain. I believe my problem is a ...
0
votes
2answers
34 views

Laptop battery says plugged in, not charging

My laptop's battery tray icon sometimes says "plugged in, not charging". How do I make the battery start charging again? Lenovo X230, 6-cell battery, Windows 8.1 64-bit. This question says that ...
0
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1answer
44 views

Battery Meter in Windows 8.1 keeps showing “Balanced” a the top

I often use High Performance and Power Saver, but the "Balanced" power plan keeps staying at the top and I can't rearrange. How I can change what plans should be shown so I don't have to go to Power ...
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0answers
9 views

Battery not charging while working on AC [duplicate]

I have an Acer Aspire 4739z laptop, few days ago it works well. But now I'm facing some problem in batteries. My laptop works only in AC Power, suppose if the power shuts down laptop also suddenly ...
0
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1answer
31 views

Sony Vaio Pro 13 (SVP13212SGBI) can no longer run when mains is not connected

I bought this laptop brand new in February this year, and only in the last week or so has it started showing this brokenness. The degradation was somewhat gradual, since I was able to run the laptop ...
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0answers
63 views

Vaio VPCSA Battery Not Detected

Out of nowhere my Vaio VPCSA stopped detecting the battery. My battery was working fine. I was getting a couple hours of streaming video on just the battery. Then last night, while on AC, the battery ...
1
vote
1answer
98 views

Which CPU is expected to have a better battery life?

I'm considering the following two cpu models for my next laptop: Intel® Core™ i7-4700mq, i7-4500U processors I understand that the 4700 mq will give me much more computing power, and that the 4500u ...
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0answers
26 views

Archlinux - Battery detected only on AC plug/unplug

I use Archlinux on a new Dell Inspiron 14. I need to plug/unplug the power cord to have the battery detected. For instance, now, the battery icon tells me that no battery is connected and $ ls ...
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0answers
90 views

How to optimize battery lifespan of Lenovo Z510?

I just bought a Lenovo IdeaPad Z510 laptop, and before I boot it for the first time, I want to make sure to know the exact proper care to ensure the best optimization of the battery's (4 cell 48 ...
1
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1answer
36 views

my laptop is not charging when switched on

I have an satellite l735-11f laptop and i have been facing a problem where the laptop battery does not charge even when power cable is plugged in. I have noticed though that i am able to charge my ...
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5answers
56 views

new laptop battery usage [duplicate]

I have a new hp laptop 4cell battery I am confused about using battery and charging it I have read it is not suitable to keep it pluged in all the time but where I live it has power fluctuation ...
1
vote
1answer
95 views

Keyboard and touchpad stopped working after battery drain in Samsung notebook

I was watching a video on my Samsung 400B4B notebook running Ubuntu 14.04 when it went to sleep because of low battery level. I plugged the AC power, resumed from the sleep but now the keyboard and ...
0
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1answer
33 views

SSD Causing Battery To Die Almost Instantly?

I'm a little stumped a what the problem is. I recently got a used a laptop and I swapped out the 500GB 5400RPM hard drive for a PNY 120GB SSD drive. When I unplug the power from the laptop, the ...
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1answer
61 views

Battery reports it's fine, but notebook won't boot /wo AC plugged in

I am running Acer Aspire Timeline Ultra M5-581TG. I opened it up to clean (as I've done twice before), assembled it back and now observe weird behaviour: the laptop won't react to the power button ...
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1answer
24 views

ASUS Notebook PC doesn't turn on

I have a new ASUS T100 Notebook PC. I charged it for 8 hours before use, as per the user manual. The first day, when I turned it on, it was fine, but two days later, when I tried to turn on the PC, it ...
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1answer
138 views

Dell Venue 8 Pro: why is the battery designed to charge up to 87%

I noticed that my Dell Venue 8 Pro (Windows 8.1) battery does not charge more than 87%. So I uninstalled the ACPI-compliant control method. It reinstalled automatically on reboot. The charge was now ...
0
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1answer
49 views

Is it possible to show a warning when laptop battery gets down to 20% remaining battery life? [duplicate]

I have a Dell laptop running Windows 7. When running on battery power, an alert pops up when the battery goes below 7% remaining battery life. Within 5 minutes of hitting 7% it goes into sleep mode. I ...
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2answers
33 views

Battery showing 100% charged with ''Consider changing your battery''

Is it normal to have a laptop have the warning ''Consider changing your battery'' but whilst also showing 100% charged. I've got the red cross on the charge symbol showing with Windows 7 on my Acer ...
0
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3answers
104 views

Ask for date on boot (challenge)

Issue An old laptop computer with XP loses date every time it boots. It has no more battery pack so it has to be plugged permanently in to wall. What I already tried Replaced the little button ...
1
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3answers
148 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
104 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
81 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 ...
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0answers
107 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 ...
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0answers
35 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
24 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
40 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
58 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
104 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
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votes
2answers
63 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
26 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
40 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
votes
1answer
75 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
1answer
115 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
25 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
88 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
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0answers
20 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
120 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
46 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
20 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
184 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 ...