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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24 views

Lenovo laptop boot stuck on regulatory information screen

I used my laptop from this morning then suddenly my laptop died. When I turn on my laptop, a screen appears like this There is a command to press the enter key there but when the laptop is on, I come ...
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New CMOS battery - Windows boot not possible - specific external hard drive

My CMOS battery has run out in my MSI H81M-E34 today and I replaced the old 3V CR 2032 battery with a new 3V CR 2016. I always had several external hard drives connected with usb 3.0 cables at my usb ...
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28 views

How can I fix the issue that when working on battery, my laptop turns off without any notification?

I have a Sony VPCEH 2010 Laptop and Win 10 is installed. When on battery, If the battery arrives at about 30%, my laptop suddenly turns off without any "Battery Low" warning and after ...
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My MacBook Air M1 (2020) drains the battery faster than expected when I keep my Android phone connected to it

The battery drains very quickly on my MacBook Air M1 (2020) when I keep an Android phone connected to it. I use it for app development. Is there any way I could stop the Android device from charging? ...
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22 views

Trying to buy a replacement battery but I worry about whether it will be compatible due to the differnce in voltage and capacity

I'm going to replace my HP 740004-121 OA04 battery,the originally is 14.8v but the one I'm looking to buy is only 14.4v. Would this not power my computer fully or not fit or be dangerous in any way?It ...
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macbook new or old? [duplicate]

i bought a new m1 macbook air few days ago and i wanted to know what should be the battery cycle count in a new machine and if its normal to have 2 battery cycle counts in a new macbook? i mean ...
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52 views

Battery Limiter cannot start

I am a using a Battery Limiter app by robotonfire (https://www.robotonfire.com/bl/). It was working good for few weeks and suddenly came this error " ERROR: Battery Limiter cannot start. The ...
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Sudden drop in battery charge in Manjaro KDE

On my Dell XPS 13 9333, I have a problem detecting the "true" battery charge. This problem was in my previous Linux distro Kubuntu and is still present in my current Manjaro with KDE. The ...
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52 views

Cannot get Battery Level

normally I used this command to get battery level wmic Win32_Battery Get EstimatedChargeRemaining but recently it started to give me: Win32_Battery - Alias not found. So I read I should be using ...
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24 views

Unknown [NONE] drained battery, now won't charge

This morning my laptop's battery fully drained within 2 minutes and now will no longer charge, showing "0% available (plugged in)" in the taskbar. I've run powercfg /spr and the report shows ...
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Spilled water on mouse, now it shows battery level even when it's off

As the title suggests, I spilled a little bit of water on my Logitech G900 mouse, and it works 100% fine, except that it's showing battery level even when I turn it off. It's only supposed to show ...
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40 views

Is it possible to charge a laptop via a USB-C-to-DC adapter plug?

I own a Acer laptop from 2017, which came with a brick-sized 19V/3,42A power supply that's connected via a 5.5/2.5mm DC plug. Although the laptop features a USB-C port, it unfortunately doesn't ...
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34 views

Windows 10 hibernates because of the battery

And by "actively" I do mean I'm typing or moving the mouse. When it happens, windows shows me a dialog box. But before I can read it, the pc is going into hibernation. I ran powercfg /...
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24 views

Why does my laptop's performance drop for a few minutes when connecting it to power?

I have a very peculiar problem with my laptop. When my laptop battery is low and I connect it to power, the performance drops extremely, to the point where it becomes impossible to use. Windows take ...
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45 views

Battery charge limiter on windows 10 [closed]

I have been searching the internet for quite a while to find an app, which will limit the battery charge on my laptop, but all of them are limited to notifications when the battery reaches a certain ...
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1answer
33 views

How can I know if my laptop is getting enough power?

I have removed my laptop’s battery because it was swelling up and damaging other components of the laptop. I am running my laptop directly through power adapter. I have connected my power adapter in a ...
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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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131 views

Charging a laptop with OnePlus Warp Charge 65 Watt Power Adapter

Is it 100% safe to charge my laptop (Lenovo ThinkPad X1 Carbon 6th gen (20KGS2ML00)) with an OnePlus Warp Charge 65 Watt Power Adaptor? https://www.oneplus.com/product/oneplus-warp-charge-65-power-...
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35 views

Does resetting Pavilion dv6 to factory settings also reset any BIOS changes made in the past, setting them back to default?

I purchased a used (old) Pavilion dv6 laptop that was running Windows 10. The seller set it to revert to factory settings to remove all of his data and programs, which also changed Windows back to ...
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33 views

New laptop boots slowly when low battery

I have a new laptop (2 months old) with the following specs AMD Ryzen 4700 AMD Radeon Graphics 8GB RAM 1200GHz 500GB storage SSD and, most of the time, it boots very quickly (i'd say a few seconds) ...
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74 views

Dual boot laptop suddenly going to sleep on Windows but not Linux - power issues?

I have a laptop that sometimes shuts down unexpectedly. It's a six year old laptop, bought second hand, that came with a new battery, but not from the laptop manufacturer. I installed Fedora Linux on ...
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55 views

Is it possible to slow charge a 240W laptop with 65W power bank via USB C?

I have a Dell Precision 7750, which has a strong GPU, and therefore a power adapter with 240W. When I'm on the road, I need to charge the laptop with a power bank. My power bank is 65W. I want to ...
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48 views

Laptop constantly draining its battery by turning on randomly

Occasionally I try to use my laptop when I've fully charged it the night before and unplugged it, then in the morning it is so dead that I get the BitLocker prompt for a key and my previous ...
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1answer
90 views

Battery is charging, but stays at 0%. “Random” occurrence

I have a Lenovo P52. It is about 1 year old. Since about one month ago, often times it shows 0% battery, charging (with the AC adapter plugged in), but the charge level stays at 0%. I don't have a ...
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51 views

Unplugging laptop causes bluescreen

I'm seeing an issue with my Acer Predator 15 (2019 model, Win 10 - 16gb RAM - gtx1660ti - i7-9750h). What the error is Plug charger the laptop Let charge (looking at Full Charged Capacity of battery,...
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295 views

No “Firmware” category in Device Manager?

Using Windows 10 on a hp 255 g5. A few months after getting it (1.5 years ago) - a big problem started one day. My laptop can not function for more than 2 or 3 minutes without being plugged in to a ...
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45 views

My laptop shuts down unexpectedly (no BSOD) when i unplug it from wall power, and battery seems like it's dying

My Asus vivobook X540UA (windows 10) suddenly shuts down without warning (no BSOD) when I unplug it from wall power, however I can still use the battery if I turn it on while it's unplugged - but then ...
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15 views

Asus Laptop not posting turns off (kb backlight turns on) then turns off after a minute

I have an Asus FX504GE that isn't posting (screen stays black) but kb backlight turns on, then laptop turns off after a minute or so. Brief Background Bought it back in Nov/Dev 2019. It had some ...
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1answer
26 views

I have an old Dell computer but the charger does not work

I have an old dell computer that has the regular charging socket malfunctioning. I have been trying to find if I can use a charger that has USB C and then use an adapter on the laptop to convert USB A ...
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Laptop battery quickly losing capacity

I have a brand new Lenovo Yoga Slim 7 (about two months old). The battery health report in the Lenovo Vantage app shows the current battery capacity as 58.24 Wh, compared to a design capacity of 60.7 ...
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101 views

Setting automatic charge levels in Ubuntu

I'm using Linux and I'd like to make my computer start charging when I am at 30% level and stop charging when I'm at 80%, because it's mostly plugged in and I want to increase my battery life. Is this ...
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36 views

battery percentage is displayed wrongly

I recently replaced a new battery, the battery now does not show low battery percentage warnings and just abruptly turns off the computer when the charge is about 20%, and when I turn it back on, it ...
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1answer
34 views

Charging laptop using PD emulator

Image of PD emulator My laptop doesn't charge via USB-c so I bought a PD emulator that plugs into the barrel port and charges the laptop through a USB c cable. But I can only charge my laptop by this ...
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21 views

Incorrect reading on laptop battery

Since last 3-4 days, my laptop's (Dell XPS 9370) battery is behaving quite erratically. I use my laptop mostly plugged in during the day, so the battery is charged to 100% at the end of the day. If I ...
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99 views

How to determine the source of hardware damage when the hard disk drive is considered damaged and the battery capacity is 4x less?

I have Dell Inspiron with 1TB hard drive, 4gb RAM, intel i3 10th gen CPU, Windows 10 Home with MS Office Home and Student 2016 Few days ago I multi-booted with Ubuntu, Kali Linux and MX Linux. All the ...
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18 views

My macbook fell and shut off. Is my laptop okay?

Scenario Yesterday I placed my laptop on the couch while I went into the other room to get something. I left it plugged in with the battery charged to 90%+. When I came out the laptop was on the floor ...
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Laptop suddenly started randomly turning off and has great trouble starting. Once started, easily shuts down again

This is a year-old Dell Latitude 5500. At around 95% battery, it suddenly shut down. Pressing the power button causes the power lights to flash, sometimes for a fraction of a second, sometimes for a ...
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82 views

Laptop charges intermittently. Sometimes yes, sometimes no

My laptop, Lenovo Z-series, 51-70, doesn't charge the battery all the time, sometimes it does, sometimes it does not. After long periods of unplugging it, and turning the laptop completely off, it ...
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3answers
205 views

Is it safe to keep my laptop plugged in all the time?

I am using battery health software which came factory installed with my laptop which limits your charging percentage to 79% and no matter how much I charge it, it will not go above it. I did this to ...
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1answer
40 views

Whats the difference between a Fujitsu Lifebook T902 battery and a Fujitsu Lifebook AH531 battery?

My Fujitsu Lifebook T902’s battery has gone bad, and I'm trying to get a new one. The Fujitsu Lifebook AH531 battery is $50 cheaper than a Fujitsu Lifebook T90 battery, so would it make a difference ...
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150 views

Is there a Windows 10 setting or an app that can control a laptop's battery charge capacity?

There is a bundled laptop software that comes with a battery master that allows users to set the maximum limit of the battery charge capacity (e.g. 60%, 80%, 100%). Is there a Windows 10 application ...
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31 views

My laptop’s battery drains fast when I play

So I have a problem other my laptop battery. Every time I load and play a game, my battery drains fast and shuts down. I decided to do an experiment of some sorts. I checked my battery and it was ...
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Why my BRAND NEW Lenovo T590 (and before Ideapad flex 5) dies when it still has some battery left?

I don't know if it is just my magnificent bad luck or the quality of Lenovo is deteriorating. I had to buy a number of ideapad flex 5 before landing on one without a plethora of problems. Turns out ...
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45 views

Battery charging on and off, should I replace battery or AC adapter power supply?

Situation: I have a Lenovo G40-70. Windows 10 Home. I bought it as new in 2017; I keep it running 24-7. The problems started with the battery not charging. I disconnected it for the night, leaving the ...
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31 views

Is it dangerous to charge a laptop via an external charger and a docking station?

If this is not the right place for this question, sorry and please direct me to the right place! I have a Dell Precision 5540 laptop, which has a 130W AC Adapter. Input = 100-240v~1.8A 50-60Hz Output =...
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2answers
630 views

Does a USB-C Power Delivery splitter exist?

Does a USB-C Power Delivery splitter exist? I’m considering purchasing an Apple 96W USB-C charger, which could Fast-Charge 2-3 devices at one time with that amount of power. The only downside is that ...
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1answer
23 views

How can a computer keep memory when it runs out of battery? [duplicate]

This very well might be a stupid question, but from my understanding a computer saves his memory using binary bits, so if electricity runs through the bit it is 1 and if there’s no electricity it is 0,...
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124 views

Is it possible to disable the battery entirely on my Lenovo laptop?

I have Lenovo 30-15IKB (Ideapad) laptop and my battery is internal. I want to disable the battery. I tried to disable it by pressing Fn + s + v but it doesn't work. I tried to do it from the BIOS but ...
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25 views

Laptop CPU runs unnecessarily fast when charging

When I connect the charger to my laptop it immediately jumps to around 4GHz on all 4 cores, sometimes even 4,7 GHz. It also draws around 40 watts, settling to around 25 after a while, instead of below ...
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115 views

Reduce CPU and GPU Power Consumption

I have a gaming laptop (i5-10300H and RTX2060 - Intel Gateway Creator Series), and as expected, it has sub-par battery life, especially because it is so powerful. However, I don't need this power all ...

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