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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6 views

Chargin an iPhone 4S with a samsung USB charger [on hold]

I have an iPhone 4S that I charge via a USB cable (plugged into my laptop). I also have a Samsung USB charger with the following specifications: 5.0 V and 1.0 A. Is it safe to plug my Apple USB cable ...
0
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0answers
15 views

Laptop not always recognizing when it's plugged in

I have a Dell Inspiron 17R, Windows 10. Almost since I've had this laptop (since October 2014) there are times when the widget will say it's not plugged in. I try unplugging the cord and replugging ...
1
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3answers
19k views

Dell laptop battery not charging?

I have a Dell Vostro 3555 and recently I noticed that my battery is not charging at all. I see this message when I boot up the computer: The AC power adapter type cannot be determined. You system ...
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0answers
231 views

Dell Vostro 3560: 3NB8W3 battery not recognized, problems with charging

I've been using standard battery for a while, but finally I bought extended battery (3NB8W3, 11.1v 8700mAh 97Wh). Sadly, my Vostro 3560 does not recognize battery properly. I always have "Plugged in ...
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1answer
39 views

Is my battery full capacity normal for a 4 month laptop?

I bought a Thinkpad E450 from Amazon last year. First day I plugged it the battery died. I had a battery replacement which after a month started failing, then I had a second battery replacement. ...
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1answer
32 views

Should Windows 7 transition Sleep => Hibernating if battery drops below critical?

I have a MacBook Pro running Windows 7 x64 via Boot Camp. I recently lost work because, on receiving a low battery warning (at 10%), I closed the lid to put the laptop to sleep, but then forgot to ...
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1answer
23 views

New laptop battery inconsistent

I have a fairly old Dell Vostro 1510 laptop and the battery finally gave up recently. I bought another one on Amazon three weeks ago and, initially, it seemed to be OK: it was charging to 100% and ...
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0answers
13 views

Working on battery until is runs out fixes my laptop

I encountered a problem where I'm stuck on the loading screen which shows my lenovo logo. I even can't enter my boot settings. I tried a lot to find a solution on the internet but with no result. I ...
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0answers
37 views

Keep laptop plugged in if at full charge if battery is not removable?

I just bought a new laptop and it comes with an integrated battery. For these types of laptops, is it better to leave the plug when fully charged or not ? I ve just experienced an issue, i looked at ...
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0answers
20 views

Battery is not getting charged [on hold]

When I plug in my charger, my laptop starts charging the battery. But after some time, it stops. Then it starts again, but it keeps stopping and starting the charging. How can I determine what the ...
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0answers
8 views

Charging device with magnetic charger causes my thumb drive to stop working until it's pulled out and replugged

So, I have a pebble smartwatch that charges with one of those magnetic connectors. Sometimes, when charging on my computer, when I pop the connector on the watch, my thumb drive, which is also plugged ...
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2answers
258 views

How the PC boots even after the CMOS battery failure?

Whenever I do switch on, my pc boots straightaway. It doesnt wait for me to press the Power button. When I plug the cable and power on, computer also automatically gets powered. So I replaced the CMOS ...
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2answers
117 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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0answers
19 views

Dell Inspiron 15-5547 Shutting Down Immediately After Startup

I am working on servicing a friend's laptop, and I cannot find what the problem is. The reason that I started servicing the laptop was that he was having issues where the laptop would shut down ...
0
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1answer
415 views

What is a long-lasting and reliable battery for Dell Latitude D630? [closed]

The battery for my Dell latitude D630 (purchased in August 2007) is only holding charge for approximately 30 minutes. When purchased, it held charge for about 2 hours. The Dell website sells two ...
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0answers
11 views

Asus UX32A - Battery Charging Weird Problems

Laptop Model - Asus UX32A OS - Windows 10 All of a sudden for some reason I have started seeing this weird problem in my battery charging. When the power cord is connected the battery icon says "No ...
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0answers
13 views

Monitor power status on laptop (Windows 10)

Sometimes I notice my laptop is losing battery power despite being hooked up to the power adapter. Also, sometimes while gaming the game becomes laggy for a short amount of time. I would like to ...
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2answers
53 views

Can I use my power bank usb output to charge my laptop?

so I have this power bank that has 3 outputs and one in which is a USB output that delivers 5v =~ 2 A! The charging cord that came with the laptop has an USB end that connects to an adapter that ...
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0answers
30 views

Laptop battery full charged

I have a new battery pack for my acer aspire 4750 laptop, it hust a 2 weeks old, actually it is working pretty good. I use batterycare to check charge level, so while i am charging and it reached 80% ...
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2answers
2k views

Is there a way to tell the laptop battery when to stop charging?

I don't want my laptop's battery to always be at 100% because it lessens battery life, especially when above 25 Celcius, the lowest summer temperature in Israel (currently 30C - 32C). I prefer to keep ...
2
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0answers
2k views

My laptop won't power on after an unexpected shutdown

I have an HP 6930 Elite book. I was just charging it in the afternoon yesterday while making a Word document on it and it suddenly got shutdown. No warning, no alert, no notification, just a sudden ...
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1answer
28 views

Laptop froze, turned it off, now boots extremely slow

My laptop froze while browsing the web, I couldn't open anything not even taskmanager. I turned it off by holding the power button. Ever since then, it's booting extremely slow (5-8 min or so). ...
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0answers
7 views

Lenovo X201 Battery management INOP

Something is not working with the Lenovo Power Manager software/hardware on my X201T tablet. The computer always shuts down when I am on battery and still have 1.5-2 Hours left of battery life ...
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0answers
14 views

HP Pavilion D7-1225ez battery not charging (tried a second battery too!)

My HP Pavilion D7-1225ez has not been charging its battery and making a lot of noise (as well as getting very hot). "HP Battery Status" returned as "INVALID: battery not inserted properly..." which of ...
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0answers
13 views

how to write udev rule to supend laptop on low battery, but not when on ac?

I would like to suspend my linux laptop when battery is low. This is done by an udevrule: SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{capacity}=="[0-6]", RUN+="/bin/systemctl suspend" ...
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3answers
5k views

Advantages of a 130W vs 90W ac adapter?

I purchased a Lenovo T420S laptop with a 90W/20V AC adapter P/N 42t4426 through my IT department. Subsequently, I ordered a replacement adapter and received a 135W/20V AC adapter P/N 45N0054. The ...
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1answer
8k views

ASUS laptop doesn't charge/use the battery after reinstalling Windows 7

I've done a clean install of Windows 7 x64 on an ASUS X501A laptop. The battery is detected and shows in the system tray as "plugged in, charging". However the charge level stays at 76% and if the AC ...
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votes
6answers
8k 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 ...
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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
5k 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 ...
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1answer
225 views

How to check the battery level of devices connected via Bluetooth in OS X

I have a set of Bluetooth headphones that I use with my iPhone and Macbook (OS X Yosemite). On my iPhone, a little battery meter pops up next to the Bluetooth logo each time I'm connect the ...
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0answers
44 views

HP Pavilion 15t RTL8723BE Wi-Fi severe packet loss when on battery power

I have an HP Pavilion 15t-ab100 laptop that is experiencing Wi-Fi issue (Realtek RT8723BE 802.11b/g/n + BT). I found that whenever I am on battery power. There will be severe packet loss even if I am ...
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1answer
32 views

Can I charge a battery and a phone at the same time? [closed]

I'm wondering if this charging setup will induce any issues. The wall is charging the left battery, which is charging the middle battery, which is charging the right phone.
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3answers
941 views

Is battery mAh measured per cell?

I have an HP 15-d053cl laptop with a 14.8V, 2620mAh, 4-cell battery (although HP's website says it's 2800mAh) and I'm looking for something to add to my battery life. I've found my same battery and an ...
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3answers
6k views

My laptop freezes when on battery?

So, first and foremost I have an HP2510p with 4GB ram running Windows 7 Ultimate 64-bit (I had Ubuntu 13.04 64-bit before but the problem was there so it has nothing to do with the OSs). I also know ...
0
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0answers
79 views

HP Pavilion 15-ab237na Laptop

The batteries only charges when laptop is switched on. How do I charge batteries when laptop is in sleep mode or switched off. Thank you
0
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0answers
26 views

Laptop stops and starts charging randomly

I have an ASUS laptop and it randomly starts and stops charging without moving the cables. The battery is brand new and seems to be working fine. The DC Adapter is professionally tested and seems to ...
3
votes
1answer
39 views

Running Compaq laptop without charger and battery

I have a laptop with a fried charging circuit. I plan to disassemble the battery and connect the leads to a 12V PC PSU. The problem is, is the 12V within the battery cutoff range? The battery is ...
2
votes
1answer
65 views

Charge my laptop/external laptop power bank from usb-output-only power banks?

I want available backup power for my laptop (ASUS ux51vz, 19V/4.74A), I've got a pile of 10-20k mAh power banks, and I'd like a solution to marry the two somehow. I know that I can get an external ...
138
votes
7answers
59k 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?
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votes
2answers
2k views

ASUS Q502L “no battery detected” - Windows 8.1

I bought the specified model about one month ago. I immediately upgraded HDD to SSD and my system seemed to work fine for three weeks. I left my computer in my car one morning, and when I tried to use ...
3
votes
1answer
113 views

Can I use car battery directly to supply power for my router?

I Have D-LINK ADSL router that needs 12V/1A DC power, I want to give it power from my old car battery (12V). Is that safe?
2
votes
1answer
90 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
votes
1answer
8k views

Can a faulty battery cause my laptop to shutdown even on AC line? (battery installed AND plugged in together)

Until recently, I experience something rather annoying (and troublesome) with my laptop. It spontaneously shuts down itself without any warning, it restarts. No blue screen, no hanging program, just ...
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0answers
14 views

Battery indicator not descending, sudden shut down

my problem is kind of simple, I have a Toshiba laptop with Windows 7. When I use it with battery, the indicator of the battery level doesn't go down, it stays at 100% for about 3 hours (normal battery ...
0
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2answers
118 views

No charge, Blinking power LED on Lenovo Y50 laptop

My laptop no longer charges while turned on. Lenovo Y50-Y70 UHD 59425943 While computer is off: Plugged in (before reset trick): No LEDs or charge. Plugged in (after reset trick): Computer charges ...
4
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4answers
4k views

Is my laptop battery dead?

Recently my laptop battery will get extremely hot (definitely hotter than it should get) when I charge it. After that I usually end up removing it once it's fully charged to let it cool down, which ...
0
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2answers
84 views

Dell Aftermarket Battery

My wife has a Dell Vostro 1700 Laptop, the battery was several years old, and no-longer held a charge for more than 20 minutes. So I ordered an aftermarket battery. After I installed it, she started ...
1
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1answer
56 views

Cuda toolkit draining battery windows 10

I installed CUDA toolkit 7.5 from NVIDIA (for Parallel programming course). But from the very next day, I've observed drastic change in the power consumption. Earlier the battery used to last for ...
0
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0answers
27 views

How hard is it to DIY a small, battery powered bluetooth device that communicates with Raspberry Pi?

I've done a lot of programming projects but have never attempted to work with bluetooth. I have an accelerometer with digital Ic2 output attached to my raspberry pi. How hard is it to get that ...