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• Diagnosing laptop charging issues

  - by Ben

  My HP dv6000 laptop will not run on battery power. It will only run while plugged into the wall. I have already replaced the battery, but it still will not operate on battery power. The problem began slowly. The original battery's life got shorter and shorter, until eventually it would only last ~45 seconds before going into hibernation. Finally, the battery would not work at all, so I threw it out and just used it without a battery. I bought a replacement recently.... but the problem persists. When I connect the new battery to the system, the "charging" light turns on for about 30 seconds, then goes dark. I'm assuming there's something wrong with the internal charging circuitry? If this is the case, how would I go about fixing this, short of buying a new motherboard? If anyone could give me some assistance in confirming/rejecting my diagnosis I'd be very appreciative! :)

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• HP dv6000 laptop powers on only if plugged in

  - by Ben

  My HP dv6000 laptop will not run on battery power. It will only run while plugged into the wall. I have already replaced the battery, but it still will not operate on battery power. The problem began slowly. The original battery's life got shorter and shorter, until eventually it would only last ~45 seconds before going into hibernation. Finally, the battery would not work at all, so I threw it out and just used it without a battery. I bought a replacement recently.... but the problem persists. When I connect the new battery to the system, the "charging" light turns on for about 30 seconds, then goes dark. I'm assuming there's something wrong with the internal charging circuitry? If this is the case, how would I go about fixing this, short of buying a new motherboard? If anyone could give me some assistance in confirming/rejecting my diagnosis I'd be very appreciative! :)

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• Laptop works fine with ac adapter, hangs after login screen using battery

  - by tavoton

  I did an Ubuntu 10.10 Desktop Edition clean install (amd64 version) on a notebook Medion Akoya E1311. With AC adapter everything works fine, but using battery, it hangs after login screen. I can type login, password too, and I can press login button. But then I can see mouse cursor and lower task bar, not upper, and nothing works. The only thing I can do is login on a terminal with ctrl+alt+F1, this is ok. Nothing seems alive on Gnome except mouse cursor. The only thing I did after Ubuntu fresh install was donwloading driver for RTL8191SE from Realtek web, because WiFi didn't work, now works fine, with ac adapter of course. Hardware is a Notebook Medion Akoya E1311 AMD Sempron 210U 1 GB DDR2 ATI RS690M (Radeon X1200 Series) Western Digital 160GB wireless RTL8191SEvB ethernet RTL8101E/RTL8102E

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• The battery indicator in Unity panel not showing up

  - by user61415

  I installed Ubuntu 12.04 with Wubi. Well after being completely dazzled with the amount of free content in the Software Centre, I decided to go deeper and start messing with settings. Well after changing the screen brightness the highest level I noticed that there wasn't an indicator for how much battery was left in my laptop. I looked up online on got 2 suggestions on how to fix: Right click on the Unity panel and add an indicator Set it to show in the power settings menu. Well I did both when I right click at the top menu nothing comes up and setting it to show does nothing either. Then I tried installing something in the Software Centre. I got something but when I activated it it said I had 0% power left even though I was charging and at %100 according the Light in the front of my laptop. So now I'm thinking that it doesn't even recognise my computer as a laptop which is weird because in the display settings it says my screen size is set to laptop. How can I install it? I don't know what version it is other then Ubuntu 12.04 and no matter what the icon does not appear with the

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• Battery Life in ubuntu 14.04

  - by user287466

  Today i had fresh installation of ubuntu 14.04 previously i had ubuntu 12.04 and had 5 to 6 hours of battery backup even at constant work, but in 14.04 getting 3 hrs only, tried with tlp but no use. lspci: 0:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

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• Asus EEE PC 1005HA battery not being detected

  - by Imran

  My EEE PC's battery is not being detected since this morning. The battery indicator doesn't turn on, Power Options in Windows doesn't detect a battery either. Apart from removing the battery and plugging it back again (which I already did), what can I do??

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• Windows battery meter utility suggestions

  - by Ashwin

  Can you suggest a good battery meter utility for Windows? Battery status being graphically displayed in the taskbar is the (obvious) minimum requirement. Anything else the utility can inform or do is a plus. (If the battery meter taskbar icon is turned off by an admin it does not appear for non-admin users. That could be another reason to look for a battery meter utility apart from the one which comes with Windows.)

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• Software to hold battery at 50% charge level

  - by Mehper C. Palavuzlar

  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 the battery is always kept at that level while on AC power. This mode prevents battery degradation and is more effective as I usually use my laptop with AC power. I'm looking for a similar program to use with other laptops with Windows OS; preferably a free one.

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• APC UPS replace battery light and apcupsd reporting "replace battery"

  - by mgjk

  We have an APC Smart UPS 1500. The "Replace Battery" light is on, and apcupsd reports: Emergency! Batteries have failed on UPS xxxx. Change them NOW However, from this article, http://sturgeon.apcc.com/kbasewb2.nsf/for+external/f39c4312fcaf7b948525679a005ebb78?OpenDocument it seems that it's not so clear that the UPS battery needs to be replaced. Stranger, according to the information on the UPS, an 11 minute runtime at 42.9% load running at 27.7V isn't so bad. Any thoughts about what to try next? We're a non-profit, money is an object. It would be a shame to replace a battery with a year or so left in it. # apcaccess status APC : 001,041,1017 DATE : Thu Mar 29 13:01:41 EDT 2012 HOSTNAME : oreilly2 VERSION : 3.14.6 (16 May 2009) debian UPSNAME : xxxx CABLE : Custom Cable Smart MODEL : Smart-UPS 1500 UPSMODE : Stand Alone STARTTIME: Thu Mar 29 12:57:30 EDT 2012 STATUS : ONLINE LINEV : 112.3 Volts LOADPCT : 42.9 Percent Load Capacity BCHARGE : 100.0 Percent TIMELEFT : 11.0 Minutes MBATTCHG : 5 Percent MINTIMEL : 3 Minutes MAXTIME : 0 Seconds OUTPUTV : 112.3 Volts SENSE : High DWAKE : -01 Seconds DSHUTD : 090 Seconds LOTRANS : 106.0 Volts HITRANS : 127.0 Volts RETPCT : 000.0 Percent ITEMP : 23.8 C Internal ALARMDEL : Always BATTV : 27.7 Volts LINEFREQ : 60.0 Hz LASTXFER : No transfers since turnon NUMXFERS : 0 TONBATT : 0 seconds CUMONBATT: 0 seconds XOFFBATT : N/A SELFTEST : NO STATFLAG : 0x07000008 Status Flag SERIALNO : AS0603298896 BATTDATE : 2006-01-14 NOMOUTV : 120 Volts NOMBATTV : 24.0 Volts FIRMWARE : 601.3.D USB FW:1.5 APCMODEL : Smart-UPS 1500 END APC : Thu Mar 29 13:02:12 EDT 2012 Error when running upstest You are using a SMART cable type, so I'm entering SMART test mode mode.type = USB_UPS Setting up the port ... Hello, this is the apcupsd Cable Test program. This part of apctest is for testing Smart UPSes. Please select the function you want to perform. 1) Query the UPS for all known values 2) Perform a Battery Runtime Calibration 3) Abort Battery Calibration 4) Monitor Battery Calibration progress 5) Program EEPROM 6) Enter TTY mode communicating with UPS 7) Quit Select function number: 2 First ensure that we have a good link and that the UPS is functionning normally. Simulating UPSlinkCheck ... YWrote: Y Got: getline failed. Apparently the link is not up. Giving up.

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• Can using higher rated battery damage device?

  - by Anwar Shah

  I am in need of a battery for my Lenovo 3000 Y410 Laptop. It's installed battery has voltage rating of 10.8v. But the shop i've consulted has only a battery of 11.1v rating. Should I buy the battery? I mean, Does using that battery can damage my laptop? An answer with some good source from hardware vendor will be very much helpful. Please do not just put your opinion. Because I do not see any difference in your opinion and my opinion. My opinion is also "It is bad". But I need some reliable source.

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• charging light on in laptop with battery removed.

  - by Jus12

  I hope this is the right place for this question. I have an LG R310 laptop. Recently the adapter connector started playing up, so I got a second hand replacement adapter of the same rating. The adapter was a cheap type (I know I made a mistake) and faulty.. it made a low buzzing sound when plugged in and not connected to the laptop. It didn't make the noise when connected to the laptop. Foolishly I used this adapter for several weeks. One day the adapter stopped working. The led didnt work and it was not charging. It had also drained the laptop's battery to 0%. I then got an original replacement adapter. Now I can use the laptop on power but the battery does not charge. The charging light does not come on. The interesting thing is that when I remove the battery the charging light comes on and stays on after I insert the battery back (the battery still does not charge). I need to know if the faulty adapter damaged the motherboard or if its just a problem with the battery. I have a multimeter and I prefer not to open the laptop. Thanks in advance.

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

  - by Stan

  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 cord is plugged out the laptop turns off. The laptop does not turn on without being plugged in either. Everything worked perfectly prior to reinstall. I've tried: Downloading and installing all the ASUS drivers, including the ATK ACPI driver Checking the BIOS - there do not seem to be any battery-related settings Flashing the BIOS to the latest version Uninstalling Microsoft ACPI-Compliant Control Method Battery in device manager as suggested on the internet Full power discharge/ATX reset as suggested by ASUS support: remove mains power charger, remove battery, press and hold power button for 10 seconds, reconnect battery and mains and turn on I have a feeling all this may have something to do with the EFI BIOS that comes on the laptop. During the reinstall I had to delete all partitions and start anew, because the Windows installer complained about the improper order of GPT partitions. The EFI System Partition was recreated by the installer, and I am guessing that it may be missing the particular ACPI driver needed to make the battery work. I've tried researching this, but could not come up with any useful info. I am hoping someone here may know a bit more about this and maybe help me understand what's going on and how to fix it. Barring that, I'll have to re-image the drive off an identical ASUS laptop with stock install and hope it fixes things.

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• Preventing battery from charging

  - by intuited

  I'm running on UPS power and would like to prevent the laptop's battery from charging, to increase the amount of power available to other devices. Is there a way to do this? update The machine is a Dell Latitude D400. If people want more details, just ask. Also, I'm gathering that I need to explain my desired setup a little better. I've gotten a bunch of suggestions about taking the battery out. I'm not sure if people are suggesting to take the battery out while the machine is running — this, as I understand, is not a good idea with most laptops — or to just remove the battery altogether. The latter option is not optimal, because ideally I'd like to use the 30-60 minutes of power in the laptop battery and then switch over to UPS power. The details of the switch-over may constitute a separate question, but if I can't find a way to keep the laptop battery from charging, then removing the battery from the machine altogether may be the best way to do this. I'm not sure yet if this machine will run without a battery, but I'll check that out. Other than the laptop, the UPS is just supporting a cable modem and router and a USB hub. Again in the idealized version of this setup, all the power management changes would be automated, i.e. not require replugging anything or pressing Fn-keys. I'd like the machine to start using laptop battery power when apcupsd indicates that the UPS A/C is out, and then start using UPS power, but not charging the battery, when the battery is almost depleted.

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• Ask How-To Geek: iPad Battery Life, Batch Resizing Photos, and Syncing Massive Music Collections

  - by Jason Fitzpatrick

  Christmas was good to many of you and now you’ve got all sorts of tech questions related to your holiday spoils. Come on in and we’ll clear up how to squeeze more life out of your iPad, resize all those photos, and sync massive music collections to mobile devices. Once a week we dip into our reader mailbag and help readers solve their problems, sharing the useful solutions with you in the process. Read on to see our fixes for this week’s reader dilemmas. Latest Features How-To Geek ETC How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Is Your Desktop Printer More Expensive Than Printing Services? 20 OS X Keyboard Shortcuts You Might Not Know HTG Explains: Which Linux File System Should You Choose? HTG Explains: Why Does Photo Paper Improve Print Quality? Orbiting at the Edge of the Atmosphere Wallpaper Simon’s Cat Explores the Christmas Tree! [Video] The Outdoor Lights Scene from National Lampoon’s Christmas Vacation [Video] The Famous Home Alone Pizza Delivery Scene [Classic Video] Chronicles of Narnia: The Voyage of the Dawn Treader Theme for Windows 7 Cardinal and Rabbit Sharing a Tree on a Cold Winter Morning Wallpaper

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• Audio codec consuming high battery power

  - by Vamsi Emani

  My powertop reports this for the two audio codec components. 4.85 W 100.0% Device Audio codec hwC0D3: Intel 4.85 W 100.0% Device Audio codec hwC0D0: Realtek I think 10 W for audio is too high. Can somebody please suggest me a way to reduce the power consumption? It'd be nice if someone could educate me on this, I have an idea about codecs in general but I have no clue about their internals? Why is it that these two components keep running always even when I am not listening to audio?

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• Battery died when updating from 12.04 to 12.10

  - by Aksh BriZmohun

  I started the update and went to sleep but I forgot to plugin AC adapter. When i woke up, laptop was off. I plugged in the AC cord and turned it on. Ubuntu boots and it is on 12.10 but may items are missing and neither gnome nor unity seem to work properly. It's also very slow and freezes sometimes. Is there a way to correct all those issues ? or revert back to 12.04 then re update to 12.10 without losing my data ?

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• Should I Leave My Laptop Plugged In All The Time?

  - by Jason Fitzpatrick

  Should you leave your laptop plugged in and charging when you’re not on-the-go? What’s best for the battery? What’s best for your user experience? Read on as we investigate. Image available as wallpaper-size download here. Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Battery life low on notebook using ubuntu 11.10 vs. windows 7

  - by les

  Im using a brand new Dell XPS notebook (bought mar 2012) which has 4.5 hrs battery life using a 6 cell battery-when i use windows 7. The machine uses an Intel core 17 2670qm processor, and a 64 bit operating system. I downloaded Ubuntu 11.10 and installed it on a USB drive, which is how i use it. I still have Windows 7 on the machine. When the machine is booting up I hit F12, and run Ubuntu from the flash drive instead of the machine booting Windows, as it normally would. On the Ubuntu menu, on the top right area, there is a battery menu, which shows how long to charge battery, or how much life left etc..with a fully charged battery the most Ubuntu will give me is 1.5 hrs. I've adjusted all power setting etc by clicking on the battery meter where i can make these adjustments, and have even turned down the brightness on the monitor. I've read through these questions here, and a user wrote to install Ubuntu 12(?)(the alpha version) when it's out this month(april), and this has better power management. Other forums (Ubuntu wiki) state that windows 7 controls power management effectively because it's configured to work with the hardware. I'd like to install Ubuntu and wipe windows but can't because of this issue. I need my notebook to go hours, not an hour and a bit. Can anybody recommend possibly a good software to use, that will work with the machines bios under Ubuntu? Another thought of mine, is- since I didn't yet wipe windows off my hard disk, is windows still possibly controlling the power mgmt aspect on the machine? I've thought of calling tech support at Dell and asking for help there, maybe Dell has something (a tweak?), I can download that'll work under Ubuntu. Looking forward to any help/suggestions i can get here, i'm really stuck on this..

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• How can I improve the battery life under 12.04 on my Inspiron 14z? [duplicate]

  - by cfogelberg

  This question already has an answer here: Tips to extend battery life for laptops and notebooks 24 answers How do I improve the battery life of my Inspiron 14z under Ubuntu 12.04? This laptop gets 4-5 hours of battery life using Windows (e.g. here). I've removed Windows, installed Ubuntu 12.04 and the initial battery life was only 2 hours. With some tweaks (described below) it's still only ~2.5 hours. For reference, the laptop is the latest model of the 14z: i5-3337U processor 32GB MSATA, 500GB HDD (5400rpm) AMD Radeon HD7570M graphics card I have put ext4 partitions on both the SSD and the HDD, and have mounted / to the SSD and /home to the HDD. I also put a 24gb linux swap partition at the start of the HDD, though I figure this won't be used all that much (the laptop has 8gb of RAM). After googling around and reading Ask Ubuntu and other sites extensively, I have done the following steps, and they have improved the battery life ~30 minutes (exact improvement not clear, but battery life is still nowhere near 4-5 hours). Installed Jupiter (and set Performance to "Power Saving") Installed laptop-mode-tools cat /proc/sys/vm/laptop_mode now outputs 5 (previously it output 0) But it's not clear that this will help: AskUbuntu question Turned down the brightness of my screen from full to 1/3 Other things I have heard about but have not tried for fear of frying the laptop or my linux install: Add "pcie_aspm=force" at the end of the line with "quiet splash" in /boot/grub/grub.cfg Enable ALPM, but it may already be enabled in 12.04? Enable i915 framebuffer compression Use a propietary driver for the graphics card? Turn off the graphics card? (what would happen if I relied on the internal Intel bridge?) Use TLP? Spin down the HDD more aggressively (howto, but I think laptop-mode-tools does this already) The only other thing I've noticed is that plastic just above the F5, F6 and F7 keys gets really hot. According to Jupiter my CPU temperature is only 69 celsius and the System Monitor shows CPU load at 7% so I don't think it's the CPU. Maybe it's the graphics card? Also, I've set up MongoDB and LAMP on the machine as well. When I run powertop MongoDB is high in the list, but I'm not sure if that's relevant to battery life because I'm not actually doing anything with MongoDB most of the time. Edit - Additional info as requested $ lspci -nnk | grep -iEA3 "(graphics|vga)" 00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) Subsystem: Dell Device [1028:057f] Kernel driver in use: i915 Kernel modules: i915 -- 02:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Thames [Radeon 7500M/7600M Series] [1002:6841] Subsystem: Dell Device [1028:057f] Kernel driver in use: radeon Kernel modules: radeon

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• HP 6350b Laptop is my battery really dead or is it a software problem

  - by Datapimp23

  I installed windows 7 and noticed that the battery status was "plugged in, not charging". I tried unplugging the battery, uninstalling the microsoft ACPI compliant Control Method, updating bios,windows. All to no avail. at first I tought it was related to windows 7 because it's a brand new laptop. But I also tested with a knoppix live cd, and there the output of acpi -V is this Battery 0: Unknown, 0% What else can I test to figure out what's going on.

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• iPhone apps causing battery to drain out

  - by saurabh

  Hi, Recently my iPhone battery started to discharge in just one day. I do not use my iPhone much (less than 1 hour a day). and then while discussing it with couple of colleagues, I heard that there are some apps which even if installed on your iPhone can cause your battery to drain out faster. It does not matter if you are not using those apps, only having them installed was enough to cause battery drain. I have heard this from couple of my techie friends as well and thus had to put some credibility to it. Being an iPhone developer, I don't think that is possible. Do you think if this is possible for an app to cause battery drain just by being installed there on iPhone?

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• Replace clock battery on Dell Inspiron 8200?

  - by jacobsee

  I have an old Dell Inspiron 8200 laptop. Still mostly works, but the clock battery has died so everytime I power it on I need to go into the BIOS and set the proper clock time. From what I've been able to tell, replacing this battery is non-trivial, but I haven't found a clear answer. How do I replace the clock battery? And how do I buy a replacement?

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• Freezing a dead(ish) laptop battery...

  - by Wesley

  I have a Compaq CQ50-215CA laptop with a battery that does not properly hold charge. Vista's battery meter does not read the remaining charge left; the laptop will randomly shut down at ~60% and sometimes the meter goes back up to 100% before shutting down without warning. So, does freezing a dead-ish laptop battery somehow repair it and allow it to hold charge again?

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• Strange battery behavior on laptop

  - by EpsilonVector

  My laptop is behaving rather strangely lately, and I was hoping to get some idea as to what may be causing such symptoms. The problem: When charging, very minute or so it loses connectivity with the AC adapter for a split second, and regains it back immediately. When this happens the little light that indicates the computer is plugged in does flicker off and back on, but I checked the adapter by replacing the battery on my laptop, and this indeed solves the problem, so it is probably the battery which is at fault, not the adapter (I also tried to move the adapter's wire around just to make sure it had nothing to do with torn wires). I suppose that the obvious solution is to get a new battery, but as far as battery defects go- this is a rather strange one; it loses connection with the adapter, but still powers the computer, and changing the power setting to a balanced plan (was maximum performance) seem to have solved the problem too. Is there a chance this is not simply the battery, but some kind of other electronic defect? And if not, what can cause it to behave so strangely? PS I tried to recalibrate it- didn't help.

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• AC/battery laptop issues(not a simple charging fix)

  - by Deric Hatchett

  Is it possible to run a laptop off the battery while the AC is plugged in? I can play games no problem while just the battery is plugged in, but obviously that means I have to let it charge after every hour or so. But, when I plug it in to charge, it can't handle any video games anymore. I thought it was the brick in the power cord going out, but I just bought a new one and it still doesn't work. The specs are actually better than the old cord. I think the problem is an over heating problem in the AC outlet, but if it charges the battery while I play, it would work just fine running solely off the battery.

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