The battery tag has no wiki summary.
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1answer
29 views
I have to clear CMOS to Boot
The problem I have is that I need to remove the CMOS battery so the computer would turn on. It appears to be dead, I press the power button and it does absolutely nothing, no lights on, no beeping, ...
0
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1answer
61 views
Why does my computer “turn on by itself”?
Good afternoon all,
I have a problem whereby everytime I hibernate my laptop (Acer Aspire 4937G) and put it in my laptop bag, when I take out my laptop it is really hot (about 70 degrees and I could ...
0
votes
1answer
41 views
How do I tell Windows 7 that I don't have a battery backup?
One of my computers recently started going to sleep at seemingly random intervals. Upon examining the system log, the reason is always the same. "The system is entering sleep. Sleep Reason: ...
1
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0answers
26 views
Does a black screen save battery on an iPhone 4? [migrated]
Where can I found information about the power consumption of an iPhone 4 display? Which technology is used? Does it save battery lifetime when the screen displays black or dark pixels?
EDIT: There is ...
1
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3answers
43 views
How to know the percentage of battery charged?
My battery is troubling me.
Whenever it goes over 97% charged level ,the charging mechanism stops and my win7 shows "plugged in,not charging" message at the power indicator.
At this point the battery ...
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0answers
62 views
iPhone 3GS Keeps Rebooting [closed]
My 3GS keeps having a strange issue, but I think I've found a pattern.
First let its battery get low enough to where it turns off on its own
Recharge it enough to come back on
After coming back on, ...
0
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0answers
20 views
/sys/class/power_supply files become zero until reboot to OS X and back to Linux
This is on a Macbook 2,1 dual booting Arch Linux and OS X Leopard.
I use a conky script to disply my battery percent with:
${battery_percent BAT0}
Recently, it switched from displaying coherent ...
3
votes
1answer
53 views
Why doesn't a phone li-ion battery die for 5 years and a pc li-ion battery dies in 1-2 years? [closed]
WHat is the major factor? heat?,size? consumption style like full discharge?
0
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1answer
65 views
Same voltage but less amps [closed]
I just bought a Galaxy Note mobile but was wondering in using a generic charger when I am at the office.
In resume I want to use a charger with the same voltage (5V) and an output of .7 A. The ...
11
votes
1answer
145 views
Is it safe to store a battery in the freezer?
Of course, assuming you wrap it in a tight plastic bag to avoid humidity.
I have a laptop battery at my office that's not currently in use, and also won't be used at least for the next several ...
3
votes
1answer
82 views
Is this MacBook Pro battery dangerous?
This is an old MacBook Pro battery.
I started having trouble with the battery, so I took it out. It later turned into what you see. It's since been sitting on a shelf in my house for almost a ...
0
votes
1answer
467 views
HP ProBook 4530s not booting up
I left my computer on my desk and came back about 3 hours later. The screen wasn't showing, so I held down the power button to restart. I can't get it to turn on. The charging LED is blinking orange ...
1
vote
1answer
632 views
Is there anything to do with a dying li-ion battery when it's nearing its end of life?
Should I keep it in the fridge?
Should I constantly discharge and recharge?
Should I keep my hopes up or should I buy a new battery?
0
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0answers
62 views
Using Ubuntu, how come the screen saver is a black screen when running on the battery?
I have an F-spot screen saver made and selected to run after a time period of inactivity. When the AC is connected, the screen saver runs after the select time, but when running on battery the blank ...
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0answers
26 views
I need for my Inspiron N5030 to work on battery, solely
I have this problem with my Inspiron N5030's A/C adapter which comes from Dell. It won't let me run my brand-new laptop without it. The Li-Ion battery doesn't charge either, it's still stuck at 88%. ...
2
votes
3answers
53 views
Store or use Li-Ion battery when on AC
I've read conflicting opinions on this point...
I've got a laptop that spends most of it's time as a desktop, plugged in on AC power for a few weeks, between occasional trips to the conference room ...
0
votes
1answer
27 views
Is my notebook battery charging even when the indicator has stopped flashing?
I just bought a new battery for my Fujitsu-Siemens PA-1510. The battery label claimed that, in order to have a long living battery it is important to charge it at least 10 hours before the first use.
...
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0answers
21 views
Battery in ASus F5R not recognised
My laptop is a few years old and needed a new battery. I inserted the new battery to charge it but the computer says "No battery."
Why is it doing this, and how can I fix it?
1
vote
1answer
48 views
Tracking a short
I was looking at a thread posted on earlier Laptop charger dying after plugging in?
talking about a power issue with a laptop or the charger. I have done some testing and concluded that the short is ...
0
votes
1answer
49 views
How to change “Last Full Charge” value?
I have to change my laptop's battery's "Last Full Charge" value. Is there any software through which I can do this or is there any software through which we can change battery firmware's parameters?
...
3
votes
2answers
67 views
How can disconnecting the battery from a laptop fix malfunctions?
I'd like a technical explanation of a fix I've seen for some HP laptops.
The user turns on their machine only to find a blank screen; the screen doesn't even turn on, but all of the keyboard LEDs and ...
1
vote
2answers
68 views
Differences between 3 and 6 cell batteries?
What is the difference between a 3 and 6 cell battery in a laptop? Does it really provide that much more power? Will I see a substantial difference in upgrading to a 6 cell?
0
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1answer
45 views
Asus 1018p battery light blinking and not charging
I recently got myself a netbook (Asus 1018pb) and its really good . I have been stuck up with a lot of work and hence not got around to using it in about a week now .
It runs Ubuntu 11.04 and today ...
1
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0answers
35 views
Procedure To Operate Gateway M-6848 On Mains Only Without Battery Installed
Gateway support told me I could do this but since my system (Gateway model M-6848 running Vista Home Premium) is no longer under warranty (or it's some kind of state secret), they won't inform me of ...
0
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1answer
2k views
How to enable Nvidia Optimus in Asus Notebook(Gt520m)?
I have recently purchased Asus K43sj. It has NVIDIA GeForce GT 520M 1GB DDR3.Problem is that it does not have optimus. Battery life is 4+ hours while surfing. But if I could enable Optimus I could ...
0
votes
1answer
38 views
Linux: Prevent iPod Touch from charging while computer is running off battery
Is there a way to prevent an iPod Touch/iPhone from charging while my computer is running off battery power?
OS: Crunchbang Linux (Based on Debian 6)
2
votes
1answer
127 views
Does anyone understand why the G700 mouse charging cable must not be extended?
[Its manual suggests to not use the extension (which is aimed for the receiver) when charging the mouse.]
I wonder why that is.
Here is a photo of it.
You can also find plenty of them on the ...
0
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0answers
28 views
What software issues are caused by power failure shutdowns? [closed]
Possible Duplicate:
Is unplugging the power from a PC in standby or in normal mode bad for it?
I have a laptop that had a failing battery. The battery life was very bad and if I ...
-1
votes
2answers
87 views
Anyone knows the name of this software? [closed]
Here's a screenshot of the application, I couldn't post it as an image because of spam prevention:
It's not batteryBar, I'd like to install this one instead of battery bar, can any one tell me the ...
1
vote
1answer
95 views
Missing battery icon in system tray in KDE
I've just installed arch linux on my laptop. Now i miss the battery icon on system tray. I can't google the anything that would help me.
3
votes
1answer
523 views
Should I leave my MacBook plugged in if it's fully charged or not?
I've already looked high and low and I just want to get something sorted out. What will degrade my white MacBook's battery's overall lifespan and dependability? Being plugged in while fully charged? ...
1
vote
3answers
86 views
Can a laptop run on a different brand charger? [closed]
Possible Duplicate:
How can I tell if an AC adapter is compatible with my laptop?
Would it be possible for me to use another brand laptops charger with my laptop?
Mine:
Toshiba Model ...
1
vote
2answers
59 views
laptop battery not getting charged
I have a pretty new (around 1 month old) Thinkpad x121e running Debian Wheezy (no Windows available).
This is what happens:
When I plug in the power cable I get a beep as I do when I unplug it (that ...
0
votes
1answer
87 views
Change the battery percentage warning on MacBooks?
Is it possible to modify when the "Low Battery" sign appears on a MacBook with Snow Leopard? For example, currently, it warns you about a low battery when it hits 10% of the overall battery charge. ...
0
votes
3answers
44 views
HP Laptop battery issues
My HP DV6 1106ax laptop with Windows 7 64-bit is about two years old. The battery died recently - it wouldn't charge and would turn off as soon as I unplugged it from the power.
I bought a new ...
1
vote
1answer
45 views
Is there a danger of running a MacBook without a working battery?
I have a MBP with a completely dead battery. The battery is so dead that the machine shuts off the instant I pull out the power cord.
When I want to disconnect the power, I shut the lid and wait ...
2
votes
1answer
96 views
Replace laptop cable with NiMH batteries
I wanted to use my laptop for way longer than the time I could do with the internal battery alone, so I went ahead and bought 16 batteries (NiMH 2600mAh), connected them in a series to reach the 19V ...
1
vote
1answer
46 views
Significance of “First time charge” for laptop battery
When buying a new laptop (and most other mobile devices with lithium-ion batteries), the manual often says to do a 'first charge' of a few hours with the device closed (and it is a common instruction ...
1
vote
2answers
68 views
Does the battery last longer if you unplug it when on power? [closed]
Possible Duplicate:
Is it better to use a laptop on battery or on AC power?
Is this true (For Dell laptops) ?
0
votes
4answers
104 views
Are laptop batteries repairable after failing to hold charge?
The laptop battery for my Compaq Presario CQ40 seems to be broken because it does not charge any more when connected to the mains.
Can this be repaired or I should call it end of life and replace it?
...
0
votes
3answers
83 views
Should I use laptop while charging? [closed]
Possible Duplicate:
Is it better to use a laptop on battery or on AC power?
Is it Okay to use laptop while charging? Does it have any bad effect on battery or laptop?
0
votes
1answer
48 views
Getting as much out of laptop on battery as on AC
Is it possible to get equal performance from a laptop when it's on battery (vs when it's on AC)? I'm running an object recognition application on my webcam feed, but the FPS drops 2-3 times on battery ...
0
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0answers
18 views
More customized desktop slideshow power settings
Is there any way I can have a desktop slideshow while my laptop is plugged in, but only a certain image when on battery?
I know how to pause the slideshow on battery power, but I don't want a ...
3
votes
1answer
127 views
Battery management of a Macbook
I bought a Macbook Pro last week. I mostly use (and plan to use) it like a desktop with an external monitor. I use the system at least 15 hours a day. Now using the coconut battery application, I ...
2
votes
1answer
23 views
Windows: Utility to see details of laptop battery
Is there is an utility that will show me detailed information on my laptop battery on Windows? Details could be type, make, capacity, current charge, number of discharge cycles, and other SMART-like ...
0
votes
2answers
184 views
How can I disable SuperFetch when running Windows 7 on battery power?
Is there a way I can disable SuperFetch whenever my Windows 7 laptop is running on battery power, and reenable it when the laptop is plugged in to AC power?
2
votes
3answers
115 views
How can I select a good UPS for network hardware?
After a recent power outage I realized that while all our main computers are laptops with battery power, the WiFi and modem are not. Cable service to the area continued working fine, but without ...
2
votes
1answer
164 views
Windows XP/Vista/7 Check Battery Charge from CMD?
Does anyone know how to get the battery status in windows? On Linux it is as simple as acpi -b but in Windows this simple task seems impossible.
powercfg -energy can get all kinds of all information, ...
4
votes
1answer
188 views
In Linux, why does my battery last only 4 hours instead of the usual 10?
I decided to switch from Windows 7 (10 hours of battery work, suspend/hibernate modes work great - Asus U36Jc) to some Linux.
First there was Ubuntu 11.04 (with all current updates) – 4 hours ...
3
votes
2answers
64 views
HP laptop doesn't charge when it is turned on
I have an HP Pavillion laptop since 2009 February and it recently started to not get batteries charged when it is turned on. What could be the problem? Is it a battery problem or another? Has anyone ...
