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.
1,869
questions
161
votes
7
answers
88k
views
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?
- 4,043
99
votes
5
answers
101k
views
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 ...
- 1,755
69
votes
5
answers
472k
views
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 ...
64
votes
6
answers
63k
views
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 ...
- 751
60
votes
4
answers
10k
views
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.
- 531
58
votes
11
answers
65k
views
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 ...
- 725
48
votes
3
answers
103k
views
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 ...
- 1,385
46
votes
4
answers
31k
views
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 ...
- 1,236
44
votes
13
answers
117k
views
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 ...
37
votes
8
answers
17k
views
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?
- 511
36
votes
3
answers
10k
views
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?
- 479
31
votes
6
answers
58k
views
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 ...
- 1,010
30
votes
3
answers
18k
views
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 ...
- 465
29
votes
7
answers
31k
views
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 ...
- 399
28
votes
3
answers
60k
views
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 ...
- 2,222