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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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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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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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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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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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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ASUS laptop not starting: battery LED blinking green twice then pause
ASUS laptop GL552V not starting. Power LED 'on', Caps lock LED 'on', fan working, battery LED blinking green twice then pause... blinking green twice again (one-second interval) then pause, etc, etc......
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Laptop is not charging when plugged and very laggy
I accidentally connected a Lenovo charger to my Dell laptop. After I realized this, I disconnected and connected to its Dell charger but now it doesn't charge. The laptop still works when plugged in ...
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Compaq Deskpro N119 turns on, 2 short beeps, no video signal
I have been trying to get this computer to work over the last couple days.
I had the "no video signal" problem and tried several things. I opened the unit and cleaned the dust out with ...
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The monitor on my Lenovo Thinkpad suddenly started going black, displaying normally, back and forth (3 cycles avg) when plug in or unplug from charger
This just started happening and I’ve found lots of questions and answers on forums with similar phenomenons except none of them go back and forth, that is the display goes black and then back to ...
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Why has my hard disk started dying all of a sudden? [closed]
I have explained the complete environment/set up of my laptop in this question. It is long, so I am not repeating it here. Please note that is a completely separate question and hence this is not a ...
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HP has laptop limited performance on battery
If I unplug my laptop, it looses significant amount of performance - it is clearly visible even in switching windows, opening task manager, reading emails in outlook 365 desktop app etc... everything ...
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I would like to know how to add a 2nd USB charging port to a Lenovo YogaBook with only one USB 2.0 port used for both data and charging?
I would like to charge a Lenovo YogaBook laptop while using the data port. This isn't supported by the laptop unless I am wrong. I have followed some tutorials which supposed to work but it didn't.
I ...
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Dell Latitude 7480 laptop has issues with charging
My Dell Latitude 7480 laptop has strange symptoms related to charging:
Sometimes it wont charge even though the charger's light is on (not the laptop one), but the battery percentage does not go ...
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Laptop power button not working but battery discharge pinhole button is starting the computer, what might be the issue here?
I have an Acer Aspire A515-51G, the issue is suddenly the power button has stopped working, the battery is charging, but the pinhole that they have given; pressing it, actually starts the computer; ...
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Battery life of a MSI
I have an MSI Creator 15 A10UET-222NL that I have had for about 3 years. For some time now, I have been experiencing the problem that the battery life of my laptop is only about 1.5 hours without the ...
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Is my battery completely dead?
I left my Asus Vivobook Pro 15 not plugged in overnight to download a file. I didn't expect the battery to run out but it did.
Now, apparently, it won't charge and my laptop shows no signs of life ...
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How to know if a charger will be compatible with Lenovo T15?
I don't have my charger for Lenovo T15 Gen 1. I bought a temporary replacement until I get it back.
But, with the replacement, I get a message on startup that the charger has insufficient wattage and ...
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MacBook Pro M3 date time in macOS Sonoma (14.2.1) all messed up after battery went to dead, how to fix automatic time?
My MacBook Pro M3 battery died on Friday Jan 19, 2024. The system is running macOS Sonoma (14.2.1). Then here's what happened:
Opened computer today on Monday Jan 22 around 9am.
Date time said Friday ...
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Wacky battery report -- ghost using my computer at night?
Why does my laptop's Battery Report sometimes say that it was "Active" when I know I wasn't using the computer and had the lid closed, and sometimes says "Suspended" when I was ...
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Notifications disabled (Windows 10)
My new laptop is running Windows 10. I was running on battery without the power supply plugged in. No notification was received at the default Power Options > Advanced settings > Battery > ...
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Is there enough evidence that this USB-C power bank works with my laptop as per the specification and not harming my laptop? [closed]
I recently purchased a HP ProBook 440 14 inch G9 Notebook PC. According to the specifications, user manual, and user guide that came with the unit, as well as the USB-C power connector port symbol on ...
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Dell laptop having issues with charging. Recognises charger and starts charging automatically and then doesn't recoginse charger and won't charge
I have a 7 year old dell vostro and this issue arose suddenly when one day I noticed that my laptop was lagging significantly. I went to the task manager to see the issue and in the performance tab ...
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Why does the Lithium-Ion computer batteries make horrible smells after being stabbed ( and got in tact with Oxygen)? [closed]
Recently my laptops just died.
So I decided to get my hands dirty and open up the motherboard.
Open up everything in order to gain some valuable knowledge.
Long story short, I found some interest in ...
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USB C charging on Dell Inspiron laptop: OnePlus 65W phone charger
I have a Dell Inspiron laptop with a USB C port. The normal charging is 65W adapter via the Dell power (charging port). If I connect this to my OnePlus phone charger which is also 65W somehow it does ...
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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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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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HP Pavillon 15 not charging beyond 50% (54%) - HP battery care function issue?
I have the issue that my (well-aged) HP Pavilion 15 laptop does not charge beyond 54%. The issue might be connected to having the "HP Battery care function" activated before updating the ...
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Laptop screen is black when on battery
On my Lenovo Ideapad LCD screen is black while on battery, OK when powered by AC adapter.
Only LCD is off with battery, also while booting, in BIOS, in Windows. If I connect adapter screen ...
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How to safely use dell latitude without battery?
I was following a YouTube video and managed to remove the battery including tapes. However, the videos on youtube mostly show how to replace the battery but I do not have a replacement and plan to use ...
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Dell Latitude not charging over USB-C PD 3.1 when powered on. It can charge, but only when I power it off
I have a somewhat weird problem where my Latitude 7300 won't charge over USB-C port when powered on with a specific non-Dell charger; I can charge the Latitude, but only when I power it off. The ...
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Battery remaining time is not shown in KDE after upgrade to Kubuntu 23.10
I upgraded my computer from Kubuntu 23.04 to 23.10 and now it refuses to show me the estimated battery time anymore (not showing remaining time of battery, sorry about the Slovenian language on the OS)...
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0190 critical low battery error only on boot lenovo x 1 carbon gen 7
I replaced my x1 carbon battery with a new one. The battery itself seems to be okay. However, it isn't a Lenovo original (I can't find any). On boot, if I don't have a charging cable plugged in, it ...
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Dell laptop not turning on and charging suddenly in middle of my usage
I'm using dell inspiron laptop without bezel and lcd screen stands in support of lcd back cover only. I typically use my laptop sideways on bed so I could lay down and watch.
This time while I'm using ...
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Windows 11 Lenovo Laptop not sleeping when I close the lid
I have a Lenovo Ideapad Slim 3 that I bought new two months ago, and it is running Windows 11. I have no idea why, but starting a few days ago, whenever I close the lid of my laptop, it doesn't sleep. ...
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How to reset a Windows 10 laptop that can't be recharged?
A client of mine (started at a tech support job last month) got a pretty hefty problem with Windows 10 on his Lenovo laptop - the battery isn't charging anymore. It seems that this is because the USB ...
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Checking CMOS battery without going into the BIOS
Today, I found my Windows 10 date and time too far ahead by about 26.5
hours. The time zone is fine, and I corrected the problem by clicking
on a "Sync" button to sync with a Microsoft ...
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Dell Inspiron 15-5558 - A battery with low health is detected, charged, but not used
I've been using Dell Inspiron 15-5558 laptop for more than 8 years without replacing the battery (cause I've been mostly using AC charger only) and today I've encountered an issue when the laptop has ...
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Dell Inspiron 1470 stuck on blinking cursor after battery replacement
I recently replaced the battery in a Dell Inspiron 1470 and when I turn it on it shows the Dell logo then it goes to a black screen with a blinking underscore character in the top left. What’s ...
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Two issues with battery report
The first issue is the design capacity. Ever since I got the laptop a bit over a year ago, it has read exactly the same as the full charge capacity, even though they both started off at around 42000 ...
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Battery drain after switching drive to a different laptop
After switching my NVMe SSD over from my Dell Latitude 7300 over to my Dell Latitude 5300 (very similar hardware and specs, both Windows 11), the battery life has considerably decreased (10 hours to ...
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HP Victus battery removed
Can I work with Victus 15 laptops with the battery removed? (Directly plugged in AC power)
I want to deliberately do it because of battery lifespan. I searched YouTube and Google and found nothing.
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Laptop battery suddenly goes from 0 to 100 and vice versa
My lenovo(ideapad 510) laptop's battery behaves strange. It is a new battery. The battery level was 100% when i unplugged the adapter. Shortly the laptop was closed suddenly and didn't work without ...
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ASUS laptop won't boot without strange sequence
Model: Asus M7400Q
The laptop got a bit wet today. I let it dry and cleaned out the motherboard with isopropyl alcohol (although nothing looked damaged), but it wouldn't boot. Plugging in the ...
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MS Update / Dead Battery Workaround on Docked Surface Pro 3
I have a Surface Pro 3 which has had a dead battery for about 6 years and since then I've always had it docked. My current version of Windows 10 is no longer supported and I'd like to update but ...
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Replace Laptop Battery With Power Supply
I have an old Macbook Pro 2013 UK version, and it's broken. I have a feeling it's the charging circuit for the battery that's broken, and that everything else works fine. I'd like to have a go at ...
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Kernel panic and memory corruption when operating laptops without built-in battery
Sorry in advance for the long winded post but I believe some context/backstory is necessary.
I was running an old Asus GL502VM gaming laptop for about 7 years with Windows 10, plugged in all the time ...
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Laptop battery only updated at boot
I use Lenovo Yoga 910-13ikb. So I found that my laptop battery couldn't gauge it's power percentage. At first I open it at 67% and after using for a while it keep at 67%. But then after restart it ...
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100w USB-C to DC power adapter charging issues
I've been encountering some issues with a custom charging setup for my Razer Blade 15 laptop. My blade is a 2020 model that does not support USB-C charging. I wanted a more compact solution than the ...
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windows 11 "low battery action" is missing "sleep" option
my laptop able to go to sleep just fine via sleep button, closing the lid, or timer. but the windows "low battery action" is missing "sleep" option.
so it only got this option: do ...
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Force BIOS recovery on AC connection
Was replacing the battery in a Dell G15 5515, since the old one no longer charged. However, after inserting the new battery, the laptop refused to charge the battery, claiming that the battery was not ...
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