0
votes
2answers
37 views

Is it safe to leave a Li-ion battery for weeks unplugged while it's not fully discharged ? And is it safe to unplug it while the PC is on?

Is it safe to unplug a li-ion battery not-discharged and leave it unplugged for a considerable period of time? (Less than a month) Is it safe to unplug the battery while the PC is on and directly ...
0
votes
0answers
41 views

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

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
votes
0answers
11 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
votes
1answer
31 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 ...
0
votes
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 ...
0
votes
0answers
21 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
votes
1answer
18 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
votes
3answers
781 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
37 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
votes
1answer
32 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 ...
1
vote
1answer
99 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 ...
0
votes
0answers
27 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 ...
0
votes
0answers
105 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
vote
1answer
37 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 ...
0
votes
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
103 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
votes
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 ...
0
votes
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 ...
0
votes
1answer
52 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 ...
1
vote
3answers
166 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?
0
votes
1answer
118 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 ...
-6
votes
1answer
42 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 ...
1
vote
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
votes
2answers
65 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 ...
0
votes
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
votes
1answer
41 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
76 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
124 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 ...
0
votes
1answer
93 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
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
124 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
votes
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
votes
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 ...
2
votes
1answer
216 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
votes
0answers
170 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 ...
0
votes
0answers
11 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 ...
0
votes
1answer
46 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 ...
16
votes
6answers
2k 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
63 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
votes
0answers
21 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 ...
-1
votes
1answer
32 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
votes
1answer
156 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 ...
0
votes
0answers
27 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
28 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 ...
-1
votes
1answer
36 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 ...
0
votes
1answer
113 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
vote
4answers
219 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
1answer
180 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
249 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.
1
vote
2answers
62 views

Laptop won't boot without power cable connected

My laptop is an Acer Aspire 5750 that used to run Windows 7 but is now dual-booted with Ubuntu 12.04 (now my predominant OS). Recently an annoying bug developed in that my laptop won't boot without ...