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 list and disable all uneeded devices on a linux laptop? [closed]

I'm on a quest to decrease my laptop's power consumption So here's what I do to reduce power consumption. Can be an useful guide for a while, if someone finds this. Questions at the end. a) decrease ...
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530 views

Diagnosing an HP EliteBook x360 1030 G3 that does not charge

I am attempting to diagnose why an HP EliteBook x360 1030 G3 does not charge on its USB-C ports. Symptoms: When the battery is connected: No charging diode remains off, whichever the port to which ...
1 vote
2 answers
4k views

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 ...
1 vote
3 answers
19k views

How can I command my Lenovo laptop to stop charging the battery at a maximum cap of my choice?

Other laptop brands like Asus allow you multiple choices of the maximum battery level when your battery stops charging, like 80% or 50%. But my Lenovo laptop doesn't, and proffers just 55-60%. How ...
1 vote
1 answer
5k views

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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1 answer
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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 ...
2 votes
2 answers
4k views

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 ...
-1 votes
1 answer
81 views

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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1 answer
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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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0 answers
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Lenovo ideaPad 110 15IBR charging requirements [duplicate]

My original charger for this laptop (Lenovo ideaPad 110 15IBR) got lost while moving. I have a Universal laptop charger 12-24V 96Watt with selectable outputs from 12 to 24V. Output current 12-19V 4.5A ...
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1 answer
5k views

How to reset Windows battery usage history statistics?

When I run a powercfg /batteryreport on Windows 10, I get a nice looking HTML report that includes battery usage history going back ~ 19 months. I suppose this is stored somewhere in my computer's ...
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99 views

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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1 answer
70 views

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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45 views

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 ...
0 votes
1 answer
4k views

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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1 answer
67 views

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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3 answers
5k views

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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1 answer
4k views

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 ...
3 votes
1 answer
10k views

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 ...
1 vote
1 answer
4k 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 ...
0 votes
0 answers
28 views

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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1 answer
80 views

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 > ...
0 votes
1 answer
81 views

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 ...
2 votes
2 answers
5k views

Lenovo laptop with Windows 10 stuck on battery saver mode

I have a Lenovo laptop that's a few years old, which has Windows 10 installed. A few weeks ago, with no obvious cause, it got stuck in perma-battery saver mode - if I click the battery icon in the ...
1 vote
0 answers
247 views

Luminous UPS turns off automatically when system left idle

I have Luminous UPS. When my UPS is on battery mode and system is idle it automatically turns off my computer. I have made sure it’s not due to low battery because when I start the UPS again it works ...
0 votes
2 answers
472 views

Plugging laptop, Desktop PC, Iphone etc in reverse due to 2 plug pins with same size

If you have a 2 pin laptop charger and a 2 pin wall outlet and plug in your laptop into the charger and the charger into the outlet upside down due to the 2 pins on the plug having the same dimensions ...
3 votes
2 answers
15k views

How to silence "bad battery" alarm in a APC Back-UPS 550 UPS?

I am using Ubuntu and I have an APC Back-UPS 550 uninterruptible power supply that's worked pretty well for several years. However, over the last year, it's "bad battery" alarm has routinely ...
2 votes
3 answers
867 views

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 ...
0 votes
1 answer
105 views

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 ...
0 votes
1 answer
122 views

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 ...
4 votes
2 answers
8k views

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 ...
1 vote
0 answers
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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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1 answer
109 views

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 ...
0 votes
2 answers
159 views

MacBook Pro Boot and Power Issue

I have a MacBook Pro which is having some trouble. Firstly, when the laptop is not plugged in, it will not turn on. When the laptop is plugged in, the battery indicator is green, fully charged, and ...
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0 answers
39 views

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 ...
-7 votes
1 answer
132 views

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 ...
1 vote
2 answers
7k views

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, ...
7 votes
6 answers
22k views

Charging a laptop though a USB-C power port with a low voltage/amperage

Let's say we have a new laptop with a USB-C port - like the new Macbook1 or the Chromebook pixel which, yes, are meant to be charged through these ports -, a good solar panel for smartphones (5V 3A ...
4 votes
2 answers
983 views

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 ...
0 votes
1 answer
13k 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 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-...
0 votes
3 answers
9k views

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 ...
1 vote
0 answers
248 views

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 ...
9 votes
2 answers
2k views

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....
0 votes
1 answer
6k views

Laptop is locking itself randomly only when is pulgged

i have a Dell Inspiron 17 7000 Series 7746, and recently i change my battery because it was old(aprox 5 years)and didn't stay charged more than 10 min,so i took my laptop to a local pc service and ...
6 votes
4 answers
8k views

Ubuntu 20.04 Battery drains even after the laptop is shut down after changing from Windows

I recently switched from windows to Ubuntu 20.04 LTS on my Lenovo e560. Whenever I press shutdown, everything shuts and the screen goes black. Pressing neither of keys other than a power key wakes it ...
0 votes
1 answer
98 views

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 ...
0 votes
1 answer
4k views

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 ...
0 votes
0 answers
15 views

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 ...
0 votes
0 answers
195 views

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 ...
2 votes
1 answer
3k views

Asus laptop shuts off randomly

I Have X541U Asus laptop with Windows 10 and it is about a year old. Initially the laptop was fine but recently it has started randomly shutting down without warning when not plugged in. I am not ...

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