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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Is it better to use a laptop on battery or on AC power?
When I'm at home, is it better to use the laptop plugged into AC power, or with just the battery, for the overall battery life?
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Why are my games slower on battery power, even with the power plan set to High Performance?
My laptop is capable of running most games on high settings at decent frame rates. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...
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Can I use a charger with more output amperage than the device needs?
I've just bought a portable battery, but the portable battery don't comes with an adapter for the house current; it only comes with a USB cable so I can charge it with my laptop. My mobile phone came ...
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How to safely store a defective (bulging) lithium-ion battery
I have a defective lithium-ion battery, one that is bulging quite severely, it's about 50% thicker in the middle than at the edge.
While the battery actually still works, I've replaced it as the old ...
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Unplug laptop while it is running
Am I "hurting" my HP laptop by leaving it running, unplugging from outlet - walking a few feet and plugging it back in? My brother-in-law says I am.
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Is it wrong to use a laptop with the lid closed?
Recently I decided to use my laptop with an external monitor and I always use it closed-lid and enjoy. :)
The question is: Is it wrong to use a laptop closed-lid?
I mean problems like overheating ...
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How can I get the battery level of my Bluetooth headphone over a Windows PC?
I am talking about headphones that can send GATT Battery Service data over the Bluetooth connection.
I get the battery levels natively on Android and iOS devices without any additional software, as ...
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Why is Windows reporting a battery charge with my desktop?
I have a desktop computer.
Get-wmiobject win32_computersystem | select manufacturer,model
Manufacturer : Hewlett-Packard
Model : HP ProDesk 600 G1 SFF
For a while it would ...
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Easy way to switch power plan in Windows 10
I've a 27" external monitor connected to my laptop and I use my laptop's screen as secondary. I've both screens turned on while I'm working. When I'm watching movies, I just keep my external monitor ...
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How can a CMOS battery store data?
How does a CMOS battery store information on it? I know it stores information such as the time, date, passwords and drive configuration, but how? How can a battery store data?
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How is the operating system able to know the battery level?
Even if we remove the default OS and install a new one it can interact with the battery. Are there some drivers for it? How does it work?
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Can a new battery go bad if unused
My old 2008 macbook's power adapter died recently and since I was not sure if the problem was it or the battery, I ordered a new generic battery as well just to speed things up.
After I received my ...
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Why do PCs still require a CMOS battery?
Why do PCs still require a CMOS battery, given that they're already plugged in?
We are providing lots of power to the PC by plugging it into AC mains electricity, so why does it still require a CMOS ...
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Does more RAM usage cause more battery usage?
I'm using a 2 year old 15" AMD laptop running Windows 8, and its battery life is not as long as the brand new ultrabooks for sure.
In the place I'm currently working I don't have access to a power ...
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Can I run my MacBook in clamshell mode without being connected to power?
At home, I run my MacBook in clamshell mode (closed lid, external display).
This works fine when you're connected to the power adapter, but it doesn't work when running on battery. That's how it's ...
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How does Windows detect battery issues?
I have a laptop that's a little over 5 years old, and I've never changed the battery, so I believe Windows 7 when it tells me "there is a problem with your battery", and to consider replacing it.
My ...
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How does limiting a laptop battery's full charge to less than 100% extend its battery life?
My laptop lets me limit how much of the battery will charge before reaching full charge:
At first, I understand what the intent is. I know that overcharging a battery will result in degradation of ...
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Can I run a computer using DC power?
I always thought that using a conventional UPS with a PC is highly inefficient. Power goes from AC -> DC -> AC in UPS and then AC -> DC in PC SMPS. Since PC works only with DC (12, 5 and 3 volts) It ...
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Is a UPS a good investment for a home machine?
Is it worth the money to invest in a battery-backed UPS unit for a home machine? Or is it a waste of money? The purpose of the UPS would be to prevent a "meltdown" of the computer due to bad power ...
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Fastest way to drain battery
I'm using Mac OS X 10.7.1 on a Macbook Core 2 Duo.
What's the fastest way of draining the battery without crashing the system and preferable by using some sort of a script?
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Extra battery in the bay of an HDD
Some modern laptops ship with an M.2 NVMe interface for an SSD and a SATA interface for an HDD.
Is it ever possible to install an extra battery in the bay of the HDD, so as to have two internal ...
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Is a CMOS battery rechargeable?
Is a CMOS battery rechargeable? If so, what does its charger look like?
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What are some good practices for making sure my laptop battery serves its full life?
Basically, I'm looking for some do's and don'ts. Is it bad to keep my laptop plugged in when I'm not using it (majority of the time)? Is it bad to plug it in once I've finished using it (with it ...
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The CPU core temperature is over 110 °C. Is it too high?
Are these temperature values below the permissible level?
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Software to hold battery at 50% charge level [closed]
My Sony Vaio laptop has a built-in program called "Sony Battery Care" which provides a functionality to hold battery at certain levels of charge while operating. For example, I've set it to 50% and ...
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How does the capacity (kVA) of a UPS affect my power consumption?
I asked my dealer for a 3 kVA UPS for my PC-class computer with a 12V * 8 * 42 Ah battery bank. However, he provided me with a 6 kVA UPS with the same battery bank.
He claimed no extra money for the ...
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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 ...
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Are notebook batteries generally hot-swappable?
I have a new HP Compaq 610. Most of the time I use it plugged and with the battery removed, to avoid wearing it. Sometimes I need to move it to somewhere else - currently I hibernate the machine, move ...
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How to stop computer from entering sleep under "Critical Battery Trigger Met" misidentification?
I'm using a Lenovo Laptop, Windows 10.
Update 15/2/2023: just today I upgrade to Windows 11, the same problem still persists (!)
Recently I think the battery cell is not fully functioning, and system ...
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Using a higher current charger on a laptop which requires a lower current [duplicate]
Possible Duplicates:
Laptop power supplies, does current matter?
Can I use a power adapter with more current but lower voltage on another laptop?
I have an ASUS K50IN laptop which requires an ...
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