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 can I update bios without battery in ASUS?

I want to update BIOS to new version. While the update process executes, was given an error. The error is : the battery must be charged above 20%... Notebook is ASUS X54C with Windows 7 Home Premium ...
51
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6answers
7k 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 ...
1
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0answers
18 views

Dell Inspiron 3420, Charger Plugged in , Charging, But Battery Percentage not going up

I got a problem from last few days, searched every where for solution but all in vain. Description: I have DEll Inspiron 3420. When I plug in Charger,it shows charging but Battery level remains at ...
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1answer
13 views

Opera 38.0 - Disable battery saver

with the latest update to the Opera browser a feature called battery saver was added. Essentially it reduces browsing performance to preserve more battery power, which is great, IF you do not work on ...
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1answer
19 views

Dell computer slows down due to not charging

I have a Dell Latitude E6420. It currently has this problem where it will be plugged in and not be charging. When it doesn't charge it massively slows down its performance. Sometimes if I wiggle the ...
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1answer
15 views

Laptop Charges and drains quickly

I have a 5-Month old Acer Aspire E5-571G. My battery normally last for 8 to 9 hrs and charges within 2-3hrs. Now, anytime i plug the charger, the battery charges so fast that in 5mins,it would have ...
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0answers
20 views

ASUS laptop shut off completely and won't start

I have an ASUS f750l laptop that suddenly switched off while unplugged; the battery was at around 40%. Now it won't start again. All the LEDs are dead, even after plugging it in. I tried pressing ...
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4answers
6k views

Windows 10, HP laptop battery “plugged in, not charging”

After installing Windows 10 on my HP Pavilion g6-2197sa laptop, I have had problems charging the battery. The battery icon reports something like "79% available (plugged in, not charging)." I can, ...
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3answers
4k views

Should my HP Pavilion dv6000 operate w/o battery pack while using electrical plug-in? Mine won't

While using my computer, it shut down, and I cannot get it to turn back on. I have tried removing the battery to see if the computer would work without it, but it did not. The light is on where the ...
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2answers
109 views

Will keeping my new MacBook continously in charge damage the batteries? [duplicate]

I just bought a new MacBook, which I'm primary gonna use as a "desktop pc" (in office). Not always, but for large period of time (~ a month without moving it from my desk). I would like to ...
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0answers
4 views

y700 on battery performance really drops after 30min

I got a Lenovo Y700 laptop and it's great! The only problem that I got is when I game on battery the performance are good (all battery saving are off) but about after 30m there is a huge frame drop, I ...
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1answer
227 views

Can you disable the GPU on a Macbook Air?

Can the graphics processing unit (GPU) be disabled on a 2011 Macbook Air as a means of increasing battery life?
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18 views

Laptop won't receive power from it's power adapter

I have an ASUS K55VD with that's causing me some serious problems lately. The problem is that even though the power adapter is connected and both it's led and the laptop's battery led are lit, the ...
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0answers
17 views

Laptop randomly shuts down when not charging

So for the past two months, my laptop has been behaving oddly. It makes much more noise, heats up when I am not doing anything cpu intensive and has just overall become rather slow. My biggest problem ...
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0answers
16 views

Removed battery while power on and notebook won't work anymore

I had a problem with my notebook months ago. It froze the screen and I could not power off by clicking on/off button. So I removed battery, put it back in the notebook, and tried to turn it on. The ...
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1answer
13 views

How to have Battery level create an external signal (usb \ BT \ send email) when reached to certain level?

I would like to have some kind of external signal when computer battery reached a low level \ full battery, using Windows 10 . The external signal should be something an IOT (such as Arduino/Rpi or ...
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3answers
4k views

Dell Inspiron 1501 battery no longer “recognized”

My parents were on vacation last weekend and franticly called me saying that they couldn't get their Inspiron 1501 to boot anymore without the BIOS whining about the battery. Before this happened, ...
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1answer
973 views

Dell Latitude D630 won't boot from battery

My Dell Latitude D630 will boot from the AC adapter, but not the battery. I've replaced the battery, tried booting with only one RAM card, etc. etc. I can't understand why, as my BIOS says the battery ...
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2answers
184 views

Laptop battery flashing

I got a DELL D505 battery and when in the laptop the light for the battery charging indicator flashes 4 times red and 1 time green. When I take the battery out and I press the button next to the 5 ...
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2answers
6k views

Dell laptop dies when unplugged but the battery appears fully charged

To expand on what I mean, I checked the voltages of each cell in the battery pack and they each read about 4.0v ea (6 green Li-ion cells in a 11.1v 53WH battery) and the total voltage reads 12.4v. At ...
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2answers
349 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 ...
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1answer
24 views

Plugged in, not charging OR just remove the battery

There are other questions regarding the "Plugged in, not charging" mode but I have not seen a comparison between that and simply removing the battery. My laptop batery goes into the "Plugged in, not ...
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3answers
392 views

Using power cord without battery inserted in laptop [duplicate]

Can I use the charger to power the computer without the battery? Will it damage the computer?
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0answers
37 views

External Battery Packs for gaming laptops/high power laptops

I have a Lenovo Y50-70 and I want to buy an external battery pack to charge it when I'm outside to extend the battery life, I want something like a full day charge (8 to 10 hours on would be fine, I ...
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1answer
2k views

Dell Inspiron 15 battery, 4-, 6-, or 9-cell?

I'm in the process of helping someone select a Dell Inspiron 15 and I'm wondering about the physical size of the battery. The default is a 4-cell which is probably just a few hours of battery life. ...
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1answer
155 views

Dell Studio 15 battery performance?

How many hours of usage can I expect from the 6 and 9 cell batteries Dell offers with the Studio 15 (for general usage, like wifi browsing and some applications like word)? Also, if you own a ...
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2answers
60 views

Is it safe to use the 5v/2A charger on a device with 1.5A max input [closed]

I have a 8000 MAH rechargeable lantern with power bank, the max input is 1.5A. Based on my recent research, this is what I am concluding, please confirm if my finding 1, 2 are correct. #3 is a ...
9
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2answers
513 views

Buying a laptop battery - OEM vs. 3rd party

Looking at a replacement 9-cell battery for my Dell 1525 I've noticed that the OEM batteries that Dell sells are up to 3x more expensive than batteries sold by a 3rd party vendor. Is the Dell premium ...
2
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1answer
485 views

Laptop battery liftime from Dell specs?

Question: When I buy a Dell Laptop, I get the following choice for battery: (Lithium-Ion main battery with X cells and Y Wh [included in price/at additional $] Lithium-Ionen-Hauptakku mit 4 Zellen ...
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0answers
9 views

View laptop power consumption without running it on battery

My laptop has a bad battery (lasts 20 - 30 minutes of normal use) but I need to see the max power consumption.I tried running Prime95 + Furmark on battery with power saving off (which took 50 watts ...
0
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1answer
3k views

plugged in, not charging

My acer aspire r7 won't charge and it states "plugged in, not charging." Looks like this is a fairly common problem people are having. I have tried many suggested solutions that I I found ...
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2answers
112 views

plugged in, not charging + ONLY runs on AC power

Laptop Model: Acer Aspire V5-473P Laptop Age: 22 months OS: Windows 10 (Upgraded 6 months ago) Problem Occurred: 5 months ago. Problem Description: Battery icon suddenly started showing "...
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5answers
34k views

Laptop battery says plugged in, not charging

My laptop's battery tray icon sometimes says "plugged in, not charging". How do I make the battery start charging again? Lenovo X230, 6-cell battery, Windows 8.1 64-bit. This question says that ...
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1answer
44 views

Specifications of power bank for a laptop

I'm not sure about how it suits the forum of electronics here on stackexchange, but I hope I'm at the right place. if not, please forgive and explain. So the case is that I own a high-end laptop (...
4
votes
1answer
277 views

Laptop shuts down suddenly when running on battery

My Acer Aspire S7-392 runs well on mains, but on battery shuts down suddenly and without warning. And I mean no warning, it is like someone yanked the power from a desktop PC. Windows does not ...
0
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1answer
48 views

Laptop Battery Draining While Plugged In

I have a relatively new (<1yr.) Dell Inspiron 15 laptop, which stays plugged in all the time. It's connected to a flatscreen monitor via HDMI & I keep the lid shut, so that screen's off. ...
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1answer
36 views

Why does removing the CMOS Battery reset settings / time?

Why does the act of removing the CMOS battery reset BIOS settings and/or clear date and time settings? The settings are probably not stored "in the battery"...
0
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1answer
42 views

Laptop CMOS battery implications

My 4 year old Dell Inspiron 15R's CMOS battery is running out (has run out ?). I know this because when I turn the laptop on it keeps on giving me 5 beeps till Windows loads. I am sure replacing the ...
0
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1answer
28 views

Linux Utility to Suspend Laptop until AC power connected?

I run a home server on a Laptop, and recently I ran into an issue where we had a storm and the power went out. The laptop I use as a home server does not have a "Wake on AC Power" function built into ...
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1answer
19 views

M325 logitech mouse is not working with new batteries

I have had this mouse for about a year now and it died yesterday when i was playing a game, so i wen't to find a new battery but none of them worked and i even checked that they were the right type. ...
85
votes
5answers
18k 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 ...
0
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2answers
5k views

What would cause a Dell Latitude d630 laptop battery to fail to charge?

I recently purchased a Dell latitude D630 from an acquaintance. It came without a battery, but I bought one from Amazon to replace the missing one. However, the battery refuses to charge. I cleaned ...
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0answers
9 views

Laptop won't charge & I keep getting four constant beeps

My friend has a Dell Inspiron 15 N5010 laptop/notebook which has recently not been working so well and has a number of issues. When the laptop is turned on it beeps four times in a row over and over ...
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3answers
8k views

Battery only charges when Laptop is off

My laptop only charges when it is off. If I try to charge it when it is on it says "plugged in, not charging". I just got it 3months ago and I've not changed its battery or charger. My Laptop is an Hp ...
2
votes
0answers
58 views

What is the “reset trick” that restores charging on Lenovo Y50-Y70?

Crux of my Lonovo Y50's problem: Finished working for the night with my laptop, I just shut the lid, not turning it off, then plugged in charger (as usual) to let it charge during the night. Woke up ...
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2answers
239 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 ...
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0answers
21 views

Windows 10: Battery level stuck on reserve level?

I haven't performed a battery calibration (gauge reset) in a long while, so I decided to do it today; after charging to 100% and discharging down to 7% (the reserve level), the battery level refused ...
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1answer
30 views

Windows 8 force battery/plugged-in icon to show in task bar

On laptop systems with a battery, Windows 8 shows either a battery icon (when running from battery) or a "plugged in" icon (when running from AC). Clicking on this icon allows changing the power ...
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0answers
26 views

ASUS K52J Laptop not turning on, no indicator lights, charger is good, battery is good

I have an ASUS K52J. The charger is good (tested on a second identical laptop). The battery is good (ditto). When the charger is plugged into the laptop, the charging indicator light won't turn on (...
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3answers
59 views

Determine replacement battery requirements for Sony Vaio laptop

I have a Sony Vaio VPCSA35GG laptop whose battery got damaged. I have discovered that Sony no longer sells the replacement batteries. I'm very new to stuff like this, and I need help determining the ...