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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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Working without battery

Can I remove the battery of laptop LENOVO Y520 and just keep working with the charger without using the battery?
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LapTop Cursor path is not stable when using touch pad with AC power supply

I faced this problem in our new factory office. When the AC power charger is connected to the laptop I cannot use touch pad properly due to is beginning to jump/slower/jittering but not smoothly ...
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Is CMOS setup available when the battery is discharged?

I have a motherboard which has a battery that can't be replaced. I plan on typing in the necessary values in the CMOS setup every time the computer is switched on. (The hard drive can be selected ...
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hp screen black out

this happens only on battery (12 cells battery, no AC adapter). when the HP lab battery charge reaches 49%, 62% (barley an hour of time) or so, the screen blacks out, sound from videos or audios still ...
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1answer
12 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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0answers
7 views

Lenovo Thinkpad P51 with Lenovo Thinkpad Prodock

Recently, I've bought the Lenovo Pro Dock docking station. This one requires 90w to function according to the official Lenovo website. However, my Thinkpad P51 doesn't charge when plugged into the ...
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0answers
24 views

How to get CPU (or Energy) usage *history* of *an app* in MacOS?

In order to maximize my battery life, I want to find and get rid of apps that use too much energy/CPU or optimize them. I researched for 3 hours, installed various tools, tried CLI but couldn't find ...
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How to monitor CPU usage (and energy impact) of an app in the last 1, 2, x hours using a graph? [closed]

But can't find an answer. I tried a few apps but nothing can provide this information so far. I can't believe there is no answer to this and eventually I wanted to ask here. Please help! How to ...
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1answer
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Keeping laptop battery healthy [closed]

On our old Lenovo's, we used to have a Lenovo app which would stop the battery from charging when it reached 100%, it would then let the charge drop to 90%, and then it would charge the battery back ...
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Female XLR 4 pin connector wired to a battery

I would like to know if it is possible and safe to wire a XLR 4-pin connector (female): to a 12V battery with 2 cables (one red, and one black). And if it is be possible, to which numbers (1,2,3,4?)
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1answer
36 views

How much battery does a Suspend To RAM wakeup process consume [closed]

Let's assume I want to build a mobile embedded computer (something running on batteries and a display and Linux). This system could receive notifications at any time via the internet. It's enough to ...
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1answer
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What happens when laptop is suspended and battery runs out?

I would like to know what happens when I have suspended my laptop and then - say 10 hours later battery runs out as suspended state still consumes battery and power was not plugged in. Does computer ...
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3answers
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Laptop won't charge when it's turned on, is hardware or software fault?

I have Asus s300ca, after some hit, I repaired my Laptop but I have a new problem when my laptop is on and sometime is off and open, it won,t charge (Actually it charge and don't and screen have some ...
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1answer
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83%health , not charging , 0 mA current flow , IDLE STATE

My laptop(DELL INSPIRON 15 series 7567) stuck at 20% battery,showing that "plugged in and charging" but turning off if i remove the charging cable.I ran some diagnatic test for mine and my friends ...
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1answer
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CAPS LOCK remains 'ON' & Battery Discharges after Turning Off Laptop

Laptop Model - Lenovo Ideapad U410 Issue: Every time I switch off my laptop, the CAPS LOCK light switches on automatically and the battery drains almost completely overnight. This issue started ...

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