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

learn more… | top users | synonyms (2)

0
votes
0answers
158 views

14.8 V vs 14.4 V battery

I had a laptop battery that was 14.4 V, and I ordered an aftermarket replacement. The replacement was sold as 14.4 V but says on the battery that it is 14.8 V. Is this safe to use? The original AC ...
25
votes
2answers
918 views

How does Windows detect battery issues?

I have a laptop that's a little over 5 years old, and I've never changed the battery, so I believe Windows 7 when it tells me "there is a problem with your battery", and to consider replacing it. My ...
0
votes
0answers
100 views

Bluetooth radio draining battery even if powered off

I'm using Arch Linux and SystemD. With Powertop I've discovered that my Bluetooth Radio drains a LOT of battery even if I disabled it on the BIOS AND with RFKILL. Furthermore, I've discovered that if ...
0
votes
0answers
222 views

Ubuntu 12.04 shuts down suddenly when running on fully charged battery

When I use battery power in Ubuntu 12.04, it sometimes suddenly shuts itself down without any warning even though I am sure that the battery is almost fully charged. This never occurs when plugged in ...
2
votes
1answer
4k views

Stop my computer from charging when the battery is full? [duplicate]

I've read online before that if you charge your laptop when it is full, it will eventually "wear out" the battery. Is there a way to stop my laptop from accepting any charge when its battery is over ...
0
votes
1answer
85 views

Are any of these laptop bricks compatible/interchangeable?

Over the years I've acquired several laptop charger bricks. I haven't disposed of any of them because I've always felt that they're probably interchangeable, but I never really knew what would make ...
0
votes
1answer
136 views

Computer Crash when Charging Cable Unplugged

On my laptop I get crashes every time I unplug my charging cable. It wasn't always like this, but has become like this over some time. Basically, I unplug the cord and it turns off instantly. It ...
0
votes
1answer
148 views

UPS vs Solar Power in case of power failure for a server [closed]

I am looking for a low power, low end pc able to run 24/7 without overheating and a way to support it in case of power failure. Power failures can be up to 72 hours. The pc dosen't need a monitor or ...
0
votes
2answers
67 views

Check which software is using the battery on my MAC

Whoever is familiar with the android system, probably knows about the utility that allows to check which app used the battery in percentage? Is there something similar for the mac? Of course, it ...
0
votes
1answer
131 views

Linux drains battery

I have a Lenovo ThinkPad L412 with a non-overclocked i5 2nd gen, 4GB RAM, and a Radeon HDv545. Whenever I use Windows and have possibly battery intensive applications running, the battery still lasts ...
0
votes
1answer
492 views

Acer Laptop is shutting off instantly when on battery

My latop (Acer M5 581-TG) is completely shutting off when on battery, sometimes before it can even attempt to boot, sometimes after 10 minutes of logging into windows. Everything is fine if it is ...
1
vote
1answer
2k views

My laptop freezes when on battery?

So, first and foremost I have an HP2510p with 4GB ram running Windows 7 Ultimate 64-bit (I had Ubuntu 13.04 64-bit before but the problem was there so it has nothing to do with the OSs). I also know ...
0
votes
1answer
269 views

Asus ultrabook won't turn on

I have an ASUS ZENBOOK UX31A with windows 8 installed on it, I recently tried to start the laptop, and it just doesn't do anything, it won't turn on any lights, no reaction what so ever. If I plug in ...
1
vote
1answer
87 views

Repeated laptop battery failures — bad batteries or bad motherboard?

I replaced my ASUS laptop battery because the charge light started blinking orange and the battery would only last a couple of minutes before dying. This condition started suddenly, not with the usual ...
1
vote
0answers
80 views

Windows should display warning when on battery

I have purchased my first laptop recently. But, the problem is many times I forgot to connect it to power supply. Due, to which all of my battery get exhausted and I get warning when it is only 10% ...
-2
votes
3answers
191 views

Using power cord without battery inserted in laptop [duplicate]

Can I use the charger to power the computer without the battery? Will it damage the computer?
0
votes
1answer
182 views

Sony vaio laptop's battery never charges to 100%

I bought a brand new sony vaio laptop (Model E15135). All is good, but its battery never charges to 100%. When it reaches to 99%, and i point the mouse to the battery, it shows "99% Available (Plugged ...
1
vote
1answer
558 views

Laptop battery does not charge

I bought a faulty LG R500 laptop and I repaired it. However, the laptop battery does not charge. Therefore, I am unable to use the laptop when it is not plugged in. In Linux Mint, a software shows ...
-1
votes
2answers
144 views

How much more battery time would I gain by not having any hard drive? [closed]

My idea is to load an operating system to a tmpfs at boot time from an USB drive or a SD card. All write operations would then be carried out on the ram. (Assume that I have a lot of RAM). I would ...
9
votes
2answers
10k views

Can I use a charger with more output amperage than the device needs?

I've just bought a portable battery, but the portable battery don't comes with an adapter for the house current; it only comes with a USB cable so I can charge it with my laptop. My mobile phone came ...
0
votes
1answer
62 views

Augmented battery make the BIOS block

I've bought a new battery for my notebook, an old AMILO Li 2727, but when it is plugged in and I try to turn on the laptop, the BIOS blocks. If I remove it and restart the computer, it works ...
1
vote
0answers
20 views

How to take care of the battery when on AC power? [duplicate]

I've recently bought a new notebook. I would like to hear your advices/tips on taking care about its life. I will use the notebook on AC power. What should i do with the battery in that case (to last ...
0
votes
1answer
407 views

HP Compaq 610 Battery not charging

my mother has a Compaq 610 running Windows 7 Ultimate. The problem here is that it is not charging when it is plugged in. It does take power from the power supply but the battery is not charging. The ...
3
votes
6answers
3k views

Implications of using a laptop always-on as a server

I assumed that there would be a lot of information on this on both the Web in general and on Superuser, but to my surprise I can't find direct answers to these questions about using a laptop as a ...
0
votes
1answer
135 views

Mac battery not charging - Weird behavior

I got a new battery a while back. After approximately 10 cycles, it has started exhibiting strange behavior. After connecting the charger for a minute the charger would show an orange light and then ...
-1
votes
1answer
446 views

Allocating more RAM to Integrated Intel HD Graphics

I am concerned about power consumption on my Asus laptop. I have allocated 512MB (maximum allowed) of RAM to the graphics card, and I wanted to know if the more you allocate the more power it ...
0
votes
4answers
2k views

samsung laptop Battery Issue wont fully charge

I have a samsung laptop and recently had a pop up message saying for battery to not completely charge to save battery life after doing this my battery does not completely charge. It charges to approx ...
0
votes
3answers
398 views

How do I find out I have a high cpu activity on my macbook air, before my battery is used up?

I have a Macbook Air. Occasionally the battery runs down very quickly and it's caused by a high cpu process. My problem is I don't know this is happening - there's no loud fan noise, just a quicker ...
0
votes
1answer
452 views

Prolonging Lithium-ion battery life: what should I do? [duplicate]

There are many suggestions about lithium ion battery: Prevent over-discharging. Cell reversal can cause an electrical short. It is good for the battery to be completely discharged every so often, ...
0
votes
1answer
142 views

Laptop does not start anymore because of power issues

I had power issues with my laptop (HP Pavilion dv7 1040ef) for awhile (two dead accumutators, some shutdowns for no reason), but now my computer won't load anymore. I can still start it on ...
0
votes
1answer
72 views

x86 OS vs x86_64 OS and battery for laptop with an intel i5 [closed]

I recently purchased a new laptop with an Intel i5 and 6 Gigs memory for general usage. I'll have the time to install it this weekend and I'm wondering whether installing an x86 instead of an x86_64 ...
0
votes
0answers
418 views

Backup Battery For Macbook Pro

I'm going on a very long flight soon and would like to use my Macbook Pro for as long as I can during the flight. I see a long list of external power packs on Amazon, but none of these appear to have ...
0
votes
0answers
195 views

How can I fix a dell xps1530 laptop battery that will not charge all

I have a dell xps 1530 laptop. The laptop initially came with windows vista. However, I once upgraded to Win 7 64 bit and it was working alright till I started having problems with a few software that ...
2
votes
1answer
95 views

New laptop battery has a lump or bulge about 1 cm across - is this a damaged battery?

I've ordered a new 3rd party battery for an old laptop. After unpacking I could feel a lump in the middle of the battery about 1 cm across, something under the plastic however the plastic hasn't ...
0
votes
1answer
89 views

Thinkpad T60 Bad Battery or Bad Charger?

I have a Thinkpad T60 and this morning it started acting up. When I plug it into the AC adapter, the AC power light comes on for about four seconds, then goes off, then comes back on and simply ...
0
votes
1answer
64 views

removing the battery of my hp pavillion g6 while gaming

hey i wanted to know that is it safe for remove the battery of my laptop and use it by plugging in the charger when i am playing games like COD or NFS. will the battery or the laptop be affected in ...
0
votes
1answer
501 views

How to pass parameters to a Linux kernel with grub?

I have posted the question "Kubuntu 12.10 laptop battery dropping fast" and there i have received the answer as accept As advised on another Stack Exchange forum, the procedure to accomplish an ...
1
vote
1answer
6k views

Dell Laptop Battery Not Charging?

I have a Dell Vostro 3555 and recently I noticed that my battery is not charging at all. I see this message when I boot up the computer: The AC power adapter type cannot be determined. You system ...
1
vote
0answers
52 views

How can I confirm my new notebook battery is genuine?

I have just purchased a replacement for HP DV6 Pavilion laptop battery from a local store in my country. I am not sure that the battery is genuine. How can I check and confirm that the battery is ...
0
votes
1answer
85 views

Laptop Power not going through [duplicate]

I have a HP dv5-1000US. Just now I faced a peculiar situation. Normally when I plug the power adapter cord, the LED at the power input socket (on the side) stays completely on and so does the power ...
0
votes
2answers
490 views

Battery Charge Suddenly Drops from 54 % to 7 % [duplicate]

I own a Lenovo B 570 series laptop. The laptop and battery being an year old lasts only 1 hour. But the strange thing is that, when the charge comes down to 54 % it drops to 7 %(critical battery ...
0
votes
2answers
268 views

HP Pavilion battery charging “bolt” LED light flashing at 82%

A few days ago, my HP Pavilion dv-1413us battery charging "bolt" LED light started flashing and it would not charge the battery until full (stops at 94%). I unpluged it and used battery, and now it ...
0
votes
2answers
3k views

Dell laptop dies when unplugged but the battery appears fully charged

To expand on what I mean, I checked the voltages of each cell in the battery pack and they each read about 4.0v ea (6 green Li-ion cells in a 11.1v 53WH battery) and the total voltage reads 12.4v. At ...
0
votes
2answers
466 views

Does a laptop run hotter when running off the battery?

This morning I noticed that my laptop fan was cycling on and off faster than normal.. then I noticed that I had forgotten to plug in the AC charger. Is is possible that running off a battery makes ...
2
votes
1answer
227 views

Prevent i7 from overclocking while on battery

I've been bringing my laptop to tutorials and lectures lately and I've noticed sometimes my CPU clocks up from 1GHZ to 3.2 GHZ which cuts my estimated battery life in half, and spins the fan up pretty ...
-1
votes
1answer
398 views

In a laptop with both an SSD and a HDD, is it still worth it to pay for 7200 rpm rather than 5400 rpm? [closed]

I am getting a laptop (Gigabyte u2442f) with two drives: a 250 GB SSD I'll use for the filesystem root, and a 750 GB HDD I'll use for home/. For the HDD, I have a choice between 5400 RPM and 7200 ...
-1
votes
1answer
273 views

When should I charge my laptop? [duplicate]

I was wondering how often should I charge my laptop? I have heard that using my charger plugged in will cause the battery to heat up and reduces battery life. Thus I've decided to stick to using my ...
0
votes
1answer
958 views

Is it safe to keep the Asus notbook plugged in to AS power while working? [duplicate]

I sometimes work the whole day with the machine. at that time, I keep my lap plugged in the the ac adapter and work with the machine. when im done, i remove it. People say its ok to do this because ...
0
votes
1answer
155 views

Laptop getting shutdown / run by battery after 10 minutes

Laptop is getting shut down after 10 minutes while it's run without battery - but with battery as well as plugged in it runs first 10 minutes by power then automatically runs by battery until the ...
0
votes
1answer
29 views

Battery ratings for HP Laptops

I have a HP DV4 1412TU laptop purchased in india. Now my concern is can i replace my laptop battery of 10.8 v 4200 mAh and 47wh rating with a 10.8 v 4400 mAh battery? Will it affect my laptop's ...