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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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How to turn off USB-C charging while my HP ProBook 445 G7 is off?

On my HP ProBook 445 G7 I disabled quick boot in Windows, wake up on LAN and USB are also disabled in BIOS but the battery looses about 14% a week when it's shut down. When I connect my phone to the ...
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How do I diagnose the yelllow triangle symbol over my battery on Windows 11?

I've got a Lenovo X1 Extreme Gen 3 and, even when using the official chargers, I always get this warning triangle over the battery logo. I've updated drivers and Windows is up to date. Even tried ...
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6 votes
3 answers
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Can I replace my 11.55 V laptop battery with 15.4 Volts

I have an HP 15-CX0056WM gaming it came with an SR03XL battery 3 cells 11.55 volts 52.5Wh The replacement was SR04XL 4 cells 15.4 volts 54 Wh, is it okay to use it? The vendor told me that this is the ...
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1 vote
0 answers
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Crippled battery using Linux with Intel Tigerlake

I've just moved to a new laptop with Debian 11. However, the battery life is terrible (1/5th time compared to running Windows). It's an Intel Tigerlake CPU (ThinkPad P14s Gen 2), and I've seen a post ...
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Why does unplugging and plugging back in my laptop power cable result in a short, sharp, immediate speed boost to all processes?

So I've got a cheap, barebones Lenovo Windows 10 laptop and I've noticed a fascinating behaviour whenever I toggle (unplug and then immediately plug back in) the power cable: I get an immediate burst ...
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0 answers
51 views

No connections are available on HP laptop after downgrade to Windows 7

There's a HP laptop that was downgraded to Windows 7 from Windows 10. I decided to do that because Windows 10 didn't work properly on such obsolete hardware. The system is much more responding after ...
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Diagnosing battery issues on laptop

My Thinkpad T540 laptop (8 yrs old) developed battery issues. It wouldn't run for more than 1/2 hour without being plugged in. I took it into a computer shop who ran some tests, determined that the ...
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Laptop giving battery issues on dual boot in different disks

For the last year I've been having issues with my experience in both Windows 10/11 and both Ubuntu 20.04. Since the installation of an SSD for W10 and an M.2 for Ubuntu, energy has been the only point ...
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Laptop doesn't turn on after unusual sudden black screen

I was using my laptop (without my charger, with battery at 72%). I decided to plug in my charger as the task I was doing would drain my battery lower (3D Modeling in Blender), as soon as I plugged in ...
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1 answer
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Laptop randomly crashes after removing its inflated battery

I noticed that my laptop OMEN by HP 15-dc0044nf was open under it, so I opened it and saw that the battery was inflated. I removed the battery and since then my laptop just randomly crashes. While ...
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0 answers
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Battery slowly draining on AC power then laptop (running Ubuntu) drastically slows down when it hits 30%

So all of a sudden my AC charger is not able to keep my battery charging when I'm using my laptop anymore. My Laptop is an Acer Aspire 5 A515-51G-72DB and I bought it brand new 5 years ago. It slowly ...
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1 vote
1 answer
50 views

PC Shuts Down Before 10% and Battery Test Shows Battery Capacity Reduction

I recently purchased a new Li-ion battery for my HP Probook 4520s PC which claims to be 5200mAh/58Wh. When I ran battery scan with windows powershell, I saw that the capacity was 45Wh. I was directed ...
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0 answers
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Laptop automatically shut down at around 30%

I bought an Acer Swift SFX14-41G since 12/2021, which is pretty new laptop. The problem is it automatically shutdown at around 30%. After several times it shutdown like that, I have tried to calibrate ...
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1 answer
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Laptop shutting down after startup?

Few months ago, battery broke from my laptop and it worked only when charger is plugged. Now it shuts during startup. I press the power button, it starts to flicker some lights like usual, but then ...
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What is the difference between LPM Set Index 2 and Set Index 3?

Just coming from another (old) SU thread asking about Intel Dynamic Platform/Thermal Framework settings and the specific meanings of each, but although most of that user's questions were answered I ...
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Laptop touchpad problems when PSU charger (Original) is plugged in

I have an HP laptop which battery is damaged since February of 2021. HP DIAGNOSTIC TOOLS tells me that battery internal capacity is only at 10% of its factory capacity. The battery is also inflated. I ...
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1 vote
2 answers
55 views

Charging a laptop not in use for 3 years

My laptop has been unplugged for about 3 years. Will the battery still be good, and how long should I charge it on the initial re-plug?
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What's a reliable way to drain battery on Windows 10 without admin?

My work laptop has group policy that resets our volume if it's muted, and we don't have permissions to shut down the laptop, only sleep it. The laptop takes itself out of sleep even if it's unplugged. ...
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1 vote
0 answers
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Why idle power usage is much higher under linux than macos on the same, intel-based macbook?

Recently I switched from macos to linux on a mid 2014 8GB retina macbook pro. I noticed when I just edit text files in vi running in terminal, the battery runs out about twice as fast on linux. Top ...
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0 answers
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Can Macbook Pro powersave only when on (a) battery and (b) lid closed?

This will sound like three questions in one, I would ask them separately, but the problem is all three conditions need to exist together (and they do in linux and windows). When I've tried to solve ...
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1 answer
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Lenovo laptop won't turn on

I'm having a weird issue with a lenovo V130 laptop that wont turn on. The behavior is as follows. I plug the AC adapter, and the led next to the plug turns on. When I push the power button the power ...
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1 answer
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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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1 answer
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Battery life of laptop

I bought laptop in 2019 specs- i5,2tb hdd and Windows 10 and from then I am keeping my laptop on sleep mode. After 4-5 months I started facing battery issues like battery life was around only 1.2 hrs ...
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1 vote
1 answer
22 views

PC didn't boot from sleep and fans were still running

After my PC went into sleep mode, the fans kept running, which never happened to me. I tried to wake it up by pressing the power button, as usual, but it didn't boot. After reconnecting the power ...
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3 answers
72 views

when a computer is plugged in and off,RTC still using the battery?

when a computer is plugged in to a power source and off,RTC still using the battery? or maybe the RTC "understand" that there is a better power source,the outlet? the question applies to ...
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0 answers
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Yoga 730 keeps randomly shutting off after battery replacement

I recently got a new Yoga 730 (15") battery from iFixit (an aftermarket battery, since the OEM ones were out of stock) and was able to replace it. The calibration instructions said to basically ...
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0 votes
1 answer
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Ubuntu Lenovo ThinkPad Battery Drains in Suspend/Hibernate

I recently purchased a Lenovo ThinkPad L14 Gen 2 with Ubuntu 21.0 pre-installed. I've been having a problem that when I shut the lid of the laptop and enter a suspended state, the laptop still ...
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2 answers
40 views

Dell Inspiron battery diode on indefinitely

I have a Dell Inspiron 15 Gaming 7577 with specs hardly IMHO important, but someone might be of other opinion, so let me start with all that non-sense: BIOS/UEFI: updated to 1.16.0, latest to date; ...
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0 votes
0 answers
273 views

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 that has been having some battery issues and I've tried literally everything I could find on this this issue, to no avail, despite considering myself pretty tech-...
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1 vote
0 answers
22 views

MacBook cannot wake up from sleep mode after battery replacement

I swapped my battery from my 7 year old MacBook Pro 15" Retina (Mid 2015) for an iFixit battery. So far, it also works very well. Only when I close the laptop and after a certain time the ...
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2 answers
177 views

MacBook clamshell mode without Power Adapter does not work with the Amphetamine app

I am using an MacBook Air M1 running macOS Monterey 12.2.1 (21D62) and when I tried to enable clamshell mode (without the power-adapter connected) with the Amphetamine app using this tutorial: https://...
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Is there a way to disconnect the laptop battery in Arch Linux?

I use Arch Linux on a laptop. To make the battery last longer, I wanna be able to disconnect it entirely to minimize idle leakage and little recharges when the battery level drops. I also want to be ...
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0 votes
1 answer
140 views

How to temperature throttle my Windows 11 laptop?

How can I temp throttle my laptop? I'm on Windows 11. I want it to be as cool as possible. I don't need performance, either when plugged in or on battery. Are there registry settings or a third ...
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0 votes
1 answer
24 views

Can you run a laptop with a dead battery using only a power bank of appropriate size?

I have a MacBook Air (13", early 2014) with a dead battery (won't accept charge). I currently run it using the MagSafe power adapter. However, the magnetic connector is too easily disconnected ...
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0 answers
45 views

Launch application when battery saver is toggled windows 10

I would like to send a command to an application to pause itself eg - Wallpaper Engine when my battery saver kicks in but i could not find a way. Tried it with Task Scheduler but it only detect AC ...
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0 votes
1 answer
127 views

Slow Wattage of Thinkpad T480 Charger

Here are the problems I have with my T480: The "Slow Charger" warning appears in Windows. I tested several chargers on Windows and Linux that support at least 65W, but Lenovo Vantage and ...
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0 votes
1 answer
46 views

Why is my laptop not charging? The led indicater does not light up but the laptop thinks it plugged in

I have a Elitebook 820 G3 laptop. As far as I could tell the battery held charge well until it suddenly stopped charging. When plugged in the led charging indicator does not light up. However the ...
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0 votes
1 answer
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What should the expected “Power On Hours” and “Battery Usage” be for a new laptop?

My new laptop (HP Pavillion 14 series) shows “Power on Hours” as 250 hours, “Power on Count” as 95 and “Battery Usage report shows the use of battery for the last 4 days (6-7 hrs of use), whereas I ...
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0 votes
0 answers
43 views

How to activate SpeedStep from linux?

Is there any possibility to control Intel SpeedStep feature from Linux? I'm looking for a service or command that should kicks in when a processor hungry process runs and it should limit the CPU ...
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2 votes
1 answer
306 views

Windows 11 how to ungroup network, volume and battery corner icons on taskbar tray

This is very annoying to me. Windows 11 groups the network, volume and battery corner icons on taskbar tray. Like show on the following picture: It also groups the interfaces of the respective popup ...
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1 vote
0 answers
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Random battery Macbook issue from 22% to full charge

After the battery replacement and an SMC and PRAM reset, still I'm getting strange behaviors on the new battery. I have been working the MacBook for some time, and after having 82% of charge it ...
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0 votes
1 answer
33 views

Vaporizer not recognized by windows when charging through USB [closed]

I would like to check the voltage (V) and current (A) with which my XMax Starry v3 vaporizer is being charged. I have tried different ports but it doesn't seem to make a difference. Do devices that ...
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0 votes
2 answers
49 views

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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0 answers
32 views

My Dell Inspiron 15R 5521 laptop turns off suddenly at random times

I have a Dell Inspiron 15R 5521 laptop that is 7 years old now, its running Windows 10. It just starts to turn off suddenly at random times without any warnings, when I power on again, starts running ...
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1 vote
1 answer
42 views

Which BIOS/CMOS Battery for ASRock FM2A75M-DGS?

Motherboard: ASRock FM2A75M-DGS In order to change the CMOS battery of a friend's PC, can I use any CRC 2032 Li-Mn as replacement? Or do I need a special type? The manual did not say exactly which ...
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1 vote
1 answer
142 views

Battery Usage in Windows 11

If I navigate to Systems > Power & Battery in Settings, and then down to the Battery Usage section, there should be a section that shows the Battery Usage per Application. Unfortunately, on my ...
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0 votes
1 answer
35 views

If I charge my iPhone using MacBook USB, while the Macbook is charging, will that affect battery life negatively?

If I charge my iPhone using a MacBook USB port while the MacBook is charging, will that affect battery life (of either the MacBook or the phone) negatively? I would think not, since the battery is ...
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0 votes
0 answers
38 views

Unable to disconnect battery connector in my Asus Laptop

I have watched multiple videos where when they moved the slider, the white battery connector just pops out. However, mine just stays in place and does not budge when I try to move it. Am I doing ...
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1 vote
2 answers
36 views

Can I use the same docking station for two different laptops? [duplicate]

I got an HP G5 Docking Station for working at home and thought I could use that to connect all my stuff and to my private laptop and charge that private laptop aswell. However, obviously the two power ...
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1 vote
1 answer
51 views

Lenovo Ideapad 5 Battery Health

It's been a year since I'm using my Lenovo Ideapad 5 with Ubuntu as my primary os. However, recently I was concerned with the battery backup. The "energy design" is 56.5 Wh but "energy ...
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