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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.

1 vote
0 answers
20 views

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 ...
0 votes
1 answer
31 views

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 ...
2 votes
1 answer
59 views

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,...
0 votes
1 answer
1k views

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 ...
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
6 answers
23k views

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 ...
17 votes
6 answers
14k views

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 ...
1 vote
0 answers
193 views

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 ...
0 votes
2 answers
6k views

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 ...
0 votes
2 answers
4k views

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 ...
1 vote
2 answers
8k 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, ...
0 votes
0 answers
61 views

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 ...
0 votes
1 answer
15k 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
2 answers
4k views

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 ...
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 ...

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