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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2answers
12 views

Using a “unapproved” charger with phone. Any actual real dangers? [on hold]

I have a OnePlus One. It states that I should only used approved chargers (aka the one that came with the phone). Is there any real danger with using for example an iPhone wall to usb adapter to ...
1
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1answer
16 views

Lenovo Ideapad z510 crashes when connected to AC power but works fine with the battery

I use a Lenovo Ideapad z510 running Windows 8 x64 and earlier today, during a snowstorm, power went out. Later, power came back and I got on my computer. As I was using it, I — idiotically — lightly ...
2
votes
1answer
32 views

HP 4530s laptop works with power cord but won't charge battery

Suddenly, two days ago my HP 4530s laptop stopped to be able to charge its battery. Since I was noting that the whole battery was dying since some weeks ago, I bought a new one. Either with the old ...
0
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0answers
21 views

Compatibility between battery, adapter and power companion [on hold]

I have Old power charger which says: "Output: 19.5 V, 6.7 A" Old battery which says: Rechargeable Li-Ion: "11.1V, min 4.18Ah I have new external Dell power companion as mobile battery for my ...
0
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0answers
18 views

Trying to show 100 splash screens for according to battery percentage

I am trying to show an empty battery with some red color at bottom(like in moto g) when the battery is discharged. I am able to show a static image for that, but if I use many images to show the ...
0
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1answer
17 views

Is battery mAh measured per cell?

I have an HP 15-d053cl laptop with a 14.8V, 2620mAh, 4-cell battery (although HP's website says it's 2800mAh) and I'm looking for something to add to my battery life. I've found my same battery and an ...
0
votes
0answers
10 views

Lenovo t400 s7 cmos

Hi my battery is dying dead and now my ac power is intermittent. It will start and run on ac and battery for a few hours but dies. It will not run on ac alone, although the power light flashes. Now ...
0
votes
1answer
50 views

Can I charge my laptop using a power bank using my laptop charger?

I have a Dell XPS-1530 laptop with a 9 cell battery. It's working fine but I was just wondering whether I could use a power connector or something to plug my laptop charger's 3 pin plug into another ...
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0answers
32 views

how can I determine if non-Apple replacement battery firmware is compatible with my system?

I'm thinking of buying a non-Apple battery replacement for Macbook Pro unibody. Apple does not support this. The process looks simple, but I'm concerned that the battery firmware could be incompatible ...
1
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0answers
16 views

Netbook battery remains limited [on hold]

I use a netbook of samsung in which the battery of the netbook is limited till 80%.After reaching 80% the charging of battery stops and shows'plugged in charging'.
2
votes
1answer
28 views

Strange Laptop battery and ac adaptor behaviour with confusing messages

I am having strange battery behaviour problems on Win 7. I don't know where to start but three scenarios happen. Scenario 1: Laptop says Battery not detected yet unplugging Ac adaptor it still ...
2
votes
1answer
26 views

Bizarre CMOS Failure?

I'm working on a PC, specifically a HP Pavilion p6-2014. Initially the PC was taken to me because it wouldn't boot. It seemed like a graphics card issue because the fans would spin up, the hard drive ...
2
votes
1answer
24 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.
2
votes
1answer
34 views

Supposedly “broken” laptop battery seemingly works fine with OS is restored. Is my battery bad?

I am working on a PC with Windows 7 starter edition. The PC is extremely slow. Nobody has ever formatted it since first use (in 2011). The battery was marked as broken by the OS, not possible to be ...
-1
votes
1answer
24 views

Attempt on charging laptop, spark sound happened

So I tried charging my laptop after an accident with some electricity, after a while there was a spark sound coming from the charging input. The laptop is running fine, is it a problem with the ...
0
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3answers
33 views

Computer turns off unexpectedly (new battery)

Recently I purchased a new battery online from newegg. Upon using it I noticed some strange symptoms: -Computer randomly turns off before battery is anywhere near low level -Once the computer ...
1
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1answer
42 views

Is it safe to attach battery when the laptop is plugged in and being used?

Let say initially I removed my laptop battery because it's already fully charged. Then I plug in my laptop to the wall socket, and then use my laptop. After that, I need to go somewhere, but I don't ...
0
votes
2answers
54 views

Laptop shuts down while on battery with no warning

I have a Asus x53e laptop. For two months, the power fails while running, and it shuts down without warning. I have changed windows but the problem persists. I have opened my laptop and had service ...
0
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0answers
24 views

Laptop won't turn on, only power button lights up

My laptop is failing to turn on fully. The only thing that happens with the laptop is the power button lights up. It stops lighting up after about 8 seconds of me pressing it and once I release it, it ...
0
votes
0answers
15 views

How to hibernate a chromebook to prevent losing battery

Is there any way to hibernate a Chromebook laptop to prevent it from leaking battery? I noticed that when I close the lid and leave it over the night, the battery is empty in the morning. The laptop ...
0
votes
1answer
18 views

MSI GX660 laptop power fluctuations

Okay. So my trusty laptop has come down with an issue. It won't always take my power supply, resulting in 2 cases. One is that it simply does not receive the power, the other is more peculiar. The ...
3
votes
0answers
81 views

Notebook's Battery is not calibrated. Operates at 0% for an hour

My problem is that even if the battery percentage is 0 the notebook can stay on around an hour. I have disabled "critical battery action" on my operating systems to use more time my notebook. The ...
1
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0answers
32 views

Some CMOS Settings Not Retained on Reboot. Battery good

Some CMOS Settings Not Retained System: Dell Inspiron 546 Motherboard: DELL F896N 0896N Experience: Advanced Issue: Some CMOS settings are not retained after saving and reboot. Some CMOS / BIOS ...
0
votes
1answer
78 views

Primary battery not charging on Thinkpad T440

I got my Lenovo Thinkpad T440 bought this year but I am having a problem wit the battery. The issue is that is the primary battery is not charging on my Ubuntu 14.04 LTS just the second (the removable ...
1
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1answer
12 views

Laptop cuts from external power when using too much energy

I have Acer Aspire 7750G and I've had this problem for some time now. I had problems with my display, it was going white for some reason. When I got it back from a repair shop, they said it was a ...
0
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1answer
32 views

Can this different battery model work with my laptop?

The laptop battery which I have currently and is not working for my Dell 5520 15R laptop is having the specs as: 1) Type: 8858X, 48Wh Standard Li-on battery, 11.1 V, 4080 mAh I ordered the battery ...
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votes
1answer
45 views

Why does unplugging my laptop from power reduce power consumption?

I want to save unneeded energy. Because of that, I changed my energy settings to power save mode. However, once I switch off the power supply for my laptop, the energy consumption and CPU tact goes ...
0
votes
1answer
28 views

Screen flashing when certain programs are focused

My laptop screen is sometime flashing when it is battery powered. While I can live with it, what puzzles me is that it flashes under certain conditions (and not always): When on battery and Firefox ...
0
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0answers
30 views

Is it a case of battery replacement or general system fault in Eaton UPS?

We have an old Eaton UPS 5130 with old battery(ies) of 4-5 yrs which has not been replaced yet. Both Load Not Protected and Downgraded Operator Indicators are on. Load Level Indicators is light 1 out ...
0
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0answers
44 views

“No Battery is Detected” but battery works

The Question: How do I get my battery to be detected again? My system is dual boot Windows/Linux. On Linux, for a while, the system claimed that the battery was always at 15%. Now, it says there's ...
0
votes
1answer
21 views

New battery not recognized

I have Acer Aspire 5750. Recently I replaced my 4400 mAh, 6 cell battery with new one, 6600 mAh, 9 cell, compatible battery. Since than, when my notebook restarts, or turns on, I have to wait for 15 ...
0
votes
1answer
52 views

Dell AC adaptor flickering green light and won't charge laptop

I have a Dell Latitude E6400 and recently the charger blinks the green LED and wont charge the laptop. After a while however the laptop charges, and then this may occur again after a couple of hours, ...
0
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1answer
62 views

Only allow laptop to charge battery to 95%?

My laptop makes a very loud noise (coming from some CPU idles state / power saving mode). This is a well recognized problem, and people on the internet seem to have not found a solution yet. The ...
0
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0answers
18 views

Xbox 360 controller on PC only indentified with the play and charge

I have a different problem than most with my XBOX 360 Wireless controller on the PC. I have the a wireless receptor connector and the Play and Charge kit. IT is an original Microsoft 360 controller. ...
0
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0answers
36 views

Satellite L745 Battery - Plugged In but not charging

When the adapter is plugged in to charge the battery, battery status show as Plugged in, not charging. When battery is plug to the laptop, can't turn on the laptop. I have to unplug the batter and ...
0
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0answers
39 views

How do I tell my Laptop that you're charging?

I own a Vaio laptop (Model Number: SVF15218SGB) which runs Ubuntu 14.04. It has a LED indicator which when plugged in, should turn on and well also inside the OS, the battery icon should show that ...
2
votes
4answers
267 views

Does charging a Li-ion battery smart phone through a computer's USB port put additional strain on the battery vs a wall charger?

I was curious about this. I read that you should generally avoid completely discharging and then full charging your Li-ion battery because this can strain the battery (though some suggested doing this ...
0
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1answer
20 views

Prevent Notebook from resuming from Standby while on Battery

A recurring problem I see with notebooks is having them resume from standby or hibernation while on battery. This can be caused by a wide range of possible reasons, ranging from network activity over ...
0
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0answers
20 views

Battery on Toshiba Satellite L875D won't keep a charge

My Toshiba Satellite L875D wouldn't stay charged when not plugged into power outlet. I figured installing a new battery would solve the problem, but unfortunately it didn't. I went to the Toshiba ...
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2answers
38 views

Charging Android phone battery [closed]

I usually connect my Android phone to my laptop with USB and leave it even after fully charged. Is it OK or harmful ? Will it reduce my battery lifetime ?
-2
votes
1answer
46 views

Dell laptop battery is dead. Computer appears to not be charging

Last night my computer was working fine. Low battery, so I plugged in it. A little bit of charge before I unplugged it and left it for the night. I thought there should have been a bit of battery ...
0
votes
1answer
51 views

Gaming on laptop with charger in

As Im sure most already know, gaming laptops don't tend to have long battery lives. To circumvent that, I'd just assume that I could game on the laptop while the charger's plugged in. However, my ...
1
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0answers
53 views

CMOS battery issue

The 5+ year old CMOS battery in my PC died and the BIOS lost it's settings. I replaced the battery but the same problem persists. As soon as I plug the PC into the power outlet, I get 4 beeps ...
0
votes
1answer
66 views

Should I keep my laptop plugged in as much as possible? [duplicate]

I know there's already some feeds on this but I just can't get one straight answer. Everybody says different things. I have an Asus laptop with a Lithium-polymer. I do game a lot so what's your ...
1
vote
1answer
63 views

HP 6910p battery charging very slowly

My laptop battery charge rate is very slow. It charges between 50% - 100% in almost 4, 5 hours. It's running normal on AC adapter without any problem but running very slow on battery mode. So can one ...
1
vote
1answer
67 views

Windows Tablet data and power from one USB

My Windows tablet has one mini USB port which is used for charging the tablet's battery as well as for data transfer but because there is only the one USB port it won't let me do both at the same ...
0
votes
0answers
116 views

Packard Bell EasyNote TE69KB is crashing because of battery overcharge?

I have a Packard Bell EasyNote TE69KB Notebook with an AMD-E1 2500 APU, AMD Radeon HD8240 graphics and 2 GB Ram. On the Notebook is Windows 8.1 installed with all updates and all drivers are updated. ...
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votes
2answers
51 views

Laptop halts on not yet low battery

Two years old samsung laptop with Windows 8.1 64 bit halts without notice or taking low battery action. I realized that it happens when it shows some 55% battery limit. It dies suddenly and ...
3
votes
3answers
93 views

Keeping laptop plugged in vs cycle count

I heard that it's bad to keep your battery fully charged all the time. It's best to keep it between 20% and 80%. On the other hand, cycle count degrades battery over time. So, which of these is ...
79
votes
5answers
6k views

Why are my games slower on battery power, even with the power plan set to High Performance?

My laptop is capable of running most games on high settings at decent frame rates. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...