Questions tagged [battery]
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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Trying to dual boot windows 8.1 o my windows 11 but got bsod INTERNAL_POWER_ERROR
I am a windows 11 user and want to dual boot windows 8.1. when i first time tried this, it had an error which was,"\Windows\System32\winload.efi missing" i thought it was an end but no, i ...
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White MacBook battery in aluminium MacBook
I have a MacBook aluminium (not pro, but the MacBook late 2008 model). Battery is harder to find, perhaps because it's a rare model. I'm wondering whether I can use a white MacBook battery? Or a MBP ...
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HP Zbook G3 Mobile workstation not turning on after
I am having a HP Zbook G3 Mobile workstation, i was working with that and forgot to plugin it in to charge, the laptop eventually turned off when it was out of battery, after that laptop is not ...
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Lenovo Z50-70 battery plugged in not charging, won't charge no matter what I do
I have a Lenovo Z50-70 running Windows 8.1. The laptop is relatively new, bought in Jan. 2015. (The warranty expired in March 2016.)
Some time ago, the original battery suddenly started to have a ...
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Can the MacBook warn me if power adapter is not plugged?
Almost always I have my MacBook plugged to preserve battery health. But sometimes I forget to plug the adaptor or the wall outlet is switched off by others.
How can I have the MacBook warn me when it'...
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Bluetooth and USB issues on desktop replacement laptop without battery
Despite age and dead battery, Dell M6700 laptop serves well as a desktop replacement for tasks like email, social media, and video streaming for a family member. However, recently Bluetooth ...
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Running Lenovo laptop on AC power
I have Lenovo yoga 260 and its battery life isn't that good, and I don't want to make it worse. i tried saving power as much as possible but it wasn't very efficient. is there a way I could ...
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Troubleshooting and fixing laptop battery charging issues [closed]
My HP laptop battery does not charge. It only shows 0% available all the time. The following is what I tried to do so far:
I installed a BIOS update.
I removed the battery from the laptop and opened ...
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Acer Nitro AP18E8M battery stops charging at 67 % under Windows 11
I have replaced the dead battery of a two years old dead Acer Nitro AP18E8M. For calibration I discharged it to 0 V and charged it again. But it stopped at 67 % charge and an orange light started ...
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Incorrect reading of battery status after wake up (linux only)
My computer is a Thinkpad X1 Extreme Gen 2. OS is OpenSUSE Tumbleweed / Slowroll, dual boot system with Windows 11.
I am having this issue since around February. In Windows everything works fine, but ...
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Dell XPS 13 strange power behavior - won't shut down, BSOD upon attempting to hibernate
I have a Dell XPS 9310 2-in-1 laptop running Windows 10. I generally keep it up to date but have been getting BIOS update fail messages occasionally that I haven't been able to fix. It is otherwise ...
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MacBook speakers crackling and laptop turns off when unplugged even though the battery is full
I hope someone can help me with this issue.
About a month ago my MacBook Pro Mid 2012 speakers started to rattle badly, specially with bass sounds, and today the laptop started to turn off instantly ...
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Is it safe to replace a 11.25V laptop battery with 11.1V or 10.8V?
I need a replacement battery for an older laptop that originally came with an 11.25V Li-ion battery (presumably 3 cells at 3.75V each).
The batteries I found online mostly have a nominal voltage of 11....
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The description for Event ID 256 from source DPTF cannot be found. ERROR FUNC: EsifEventProcess FILE: esif_uf_event.c Invalid event source received
I have Alienware 17 R2 laptop, OS is Windows 10. I started getting a lot of these errors in Event Viewer.
The description for Event ID 256 from source DPTF cannot be found. Either the component that ...
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Laptop creating noises when fully charged and plugged in
My laptop Dell Inspiron 15r 5537, creates a buzzing sound when it is fully charged and still plugged in. As soon as I turn the charger off, the sound goes away. No sound comes when the laptop is ...
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Win 11: What performance characteristics does the "power mode" setting change
(1) In Windows 11 there's a new settings item System -> Power & Battery, which under Power mode gives 3 choices: "Best Power efficiency", "Balanced", and "Best ...
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Can I run my MacBook in clamshell mode without being connected to power?
At home, I run my MacBook in clamshell mode (closed lid, external display).
This works fine when you're connected to the power adapter, but it doesn't work when running on battery. That's how it's ...
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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 ...
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Laptop charger on high performance making "crackling" sounds
I've read multiple threads about how a "crackling" noise coming from a laptop charger is worrisome, but I recently I found that my laptop charger makes this sound only when my computer is ...
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Why is Windows 10 freezing for a second everytime the background changes?
I have my Windows 10 laptop set to change my desktop background every minute by using the built-in Windows feature to set it to a slideshow of a folder. It also changes the accent color accordingly. ...
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Why HP Windows 10 laptop is not starting without charging cable
I have a HP Windows 10 laptop. I was reinstalling Windows yesterday so I left the charging plug on and today when I was using it, it suddenly got shutdown so plugged the charger. As you may know ...
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ASUS Laptop Battery Keeps Switching from AC to DC mode
I have an ASUS X450J laptop with Windows 10 and Li-ion battery 15V, 2950mAh, 44Wh. My problem is whenever I charge the laptop, it keeps switching between "Plugged In" and "On Battery" rapidly. It ...
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replacing a battery in the Lenovo Ideapad 3
I'm replacing the battery for a Lenovo Ideapad 3. The label fine print seems to show the model is 15IML05. When I search for that part in an online marketplace 2 batteries show up.
45 Wh battery ...
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Laptop wont start on battery but works fine when adapter connected
We have Lenovo Y50-70. Original old battery went dead, so we bought new battery from Green Cell.
But the problem is that laptop cannot boot to windows on battery. It shuts down on windows boot screen. ...
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How to recover corrupted MacBook Pro SMC Firmware
I have a MacBook Pro Retina 15" that is no longer bootable due to (as far as I can tell) corrupted SMC firmware. The reason I think this is that SMC resets no longer work, the MagSafe charging light ...
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Mimicking Laptop Battery Management Software With Smart Switch
I just bought a new HP Laptop (Envy x360) and was very surprised to find out that it had no battery/energy management software or anything in the bios to manage the charge of the battery to keep it at ...
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Powerchute Windows10 and reducing power consumption while on UPS battery
I have a computation app that can sense running on batteries, but does not trigger when PowerChute 3.1.0 is running on battery power (APC UPS1500 Pro). That app knows the power is limited, but Win10 ...
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What is the difference between 3 cells, 4 cells and 6 cells battery
I am going to buy new laptop but there is some confusion in battery capacity.
I found that 3 cells battery backup is good than 4 cells battery laptop but I read somewhere that more cells means that ...
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Laptop is locking itself randomly only when plugged in
i have a Dell Inspiron 17 7000 Series 7746, and recently i change my battery because it was old(approx 5 years)and didn't stay charged more than 10 min,so i took my laptop to a local pc service and ...
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Laptop needing a more powerful power supply?
I have chosen a laptop to use both for university use and gaming: Lenovo Yoga Pro 9 16IMH9. It is quite expensive and has great specs and features, but unfortunately has a major flaw.
According to one ...
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I usually miss low battery warning from Windows 10 (while typing...)
I find the coloured banner that appears at ~10% very useful, but only under low keyboard activity... I would love to have something as a corner popup with a long enough timer, which doesn't take ...
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What happens if during RAR compression the laptop runs out of battery?
I was compressing a large file using RAR, so it took quite a while. During the compression at some point I had to unplug the computer and let it continue with battery only. After a few hours when I ...
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Good battery, but UPS fails to do its job
I have a not-so-old APC Back-UPS 1400 (model BX1400U).
It uses 2 x 12 V / 7 Ah batteries. The original batteries are dead (voltmeter says less than 5 Volts, ultra dead). I bought 2 new batteries (12 V,...
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High pitch whine followed by static - laptop battery
I was reinstalling windows on my girlfriend's laptop when a strange buzzing came from the battery and the pc shut down.
After multiple attempts to install windows 10, then 8, then 7...
After a day and ...
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Could hibernation kill my laptop battery?
My laptop is running Arch Linux and I purchased a battery late last year. However, over the last few weeks, my battery life has declined rapidly (from over 2 hours to less than 1 hour). Over the ...
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HP Laptop does NOT boot without battery
I have an HP laptop that has an old battery. The battery is working but lasts for short time.
However I don't need the battery as most of the time I am using it plugged. I tried to remove the battery ...
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How to check if power cable is connected from the command line?
I'm running ubuntu on my notebook and I need a way to check (from the command line) if the power cable is connected. Is there any system file that keeps log of this? or is there a bash command that ...
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ThinkPad X1 Extreme Battery discharging issues
I have a ThinkPad X1 Extreme running Win 11. These ThinkPads don't have a good reputation for battery life, but the battery seems to discharge very quickly while in sleep or hibernation. Today I ...
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Laptop has 100% available plugged in charging and seems to be charging battery
I have a Dell Inspiron 5521 running Windows 8.1.Recently, I had replaced my battery. But my battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no ...
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Software to totally drain a laptop battery
I'm looking to totally drain 2 laptops in order to judge which one has the better battery. They have different software on them though, so I wanted to find software that will absolutely hammer the ...
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Computer Shutting Down at ~50% Battery
My laptop is unexpectedly turning off when it reaches about around 50% battery, but the actual level can be anywhere between 40% and 60%. It never turns off when plugged in. Whenever it does shut off, ...
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Lenovo laptop cpu speed down to 0.5 GHz from 3.0 GHz normal speed when battery connected and plugged in to ac power
This problem of mine has nothing to do with power options.
I really can not understand what is going on.
When the battery is connected and the laptop is plugged in to ac power, laptop cpu speed is so ...
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Acer Nitro 5 AN515-51-55WL battery is not charging, but doesn't lose charge while plugged into adapter
I have an Acer Nitro 5 AN515-51-55WL laptop that has been having some battery issues and I've tried literally everything I could find on this issue to no avail.
I'm hoping one of you has an outside-...
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My UPS can't handle PC load sometimes, what's wrong?
So I recently built a PC and with it, I bought a cheapish 600W UPS. My PC on PCPartPicker showed that I required around 330W to use it properly (I went with a 700W PSU). I also have my monitor and ...
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Battery won't charge on new Asus laptop running Ubuntu
I bought a brand new Asus Q550L notebook from Bestbuy the other day and I removed Windows 8 from it and replaced it with Ubuntu. Now the battery won't charge. It is sitting at 45% capacity, if I ...
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Why is my CPU utilization limited to 0.4 GHz?
I've seen other similar questions, but none meet my exact circumstances so I wanna make sure I do the right thing before investing money in a new fan/charger or potentially messing something up trying ...
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Laptop Battery Showing Charging Icon Even Though It's Not Plugged In
(1) My laptop think it's charging even when it's not plugged in. (it shows the charging icon)
Win 10 64 bit
(2) And also it does this weird thing when I shut it down, it's just restarting and I have ...
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Why are UPS battery backups all rated in VA instead of AH?
Looking at an online retailer, I see uninterruptible (battery backup) power supplies are marketed as:
"1500VA"
"600VA"
"425VA"
"425VA/260W"
"1500VA/900W&...
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Battery not charging, laptop only works when plugged
Yesterday my battery was working fine (for an old computer). It could sustain a normal usage for three hours at least. Today I have the following symptomas:
I noticed that it didn't charge, even ...
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Bought an X220 Lenovo in a good shape. Used it for a couple of weeks. But for two days I can't load the battery
Bought an X220 Lenovo in a good shape. Used it for a couple of weeks. But for two days I can't load the battery. I use a SANYO 45N1172. It's stuck on 48% and shuts down if i take the power supply off. ...
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