Lenovo T400 / T500 :: T410s Runs Without Battery Or Plug
Nov 3, 2014
I have a video about this Thinkpad 410s.I always pull the battery to replace a screen on a laptop.After replacing the screen I got ready to test it.I forgot to repace the battery and with the power adapter NOT connected it booted once before I realized what it was doing.I then turned my smartphone camcorder on and it booted a second time.Is there a second battery or is it running on capacitors? it had been unplugged 3 days before I changed the screen.
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Oct 14, 2008
I've bought Lenovo T410s in pretty bad shape. I decided to refubish the one, because I've some spare parts from T400s. So I disassembled the laptop, cleaned the one and assembled it back. Because the LCD screen was defected, I changed the whole LCD assembly (I put the whole one from T400s), changing only the LCD front bezel (but the only difference between the bezzel is the model inscription on it).
I installed the system back. After finishing the instalation of the system with all drivers update, I noticed that the HDD LED in the front LCD panel (that one under LCD) is still lighting as the AC charger is in. When I take it out, it stops lighting.
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Jun 24, 2010
My webcam has been working fine with all programs (skype, aim, websites, etc) until yesterday. Now, it just shows a black sceen and when I try to access it on websites I get error messages saying the webcam can not be found. When I look under my devices, it says the webcam is installed and my drivers are up to date. I tried reinstalling the drivers but that didn't work.
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Jun 2, 2014
How can i remove my bios password on a t410s and on t410. I work by selling refubished computer and i have some t410s and t410 but with bios password, can i flash bios, to remove it?if yes, how?
Is there any jumpers on them (specially on t410s)...
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Jul 18, 2013
On my Windows 7, APS works well with an icon on the system tray. But in Ubuntu (13.04), because of no driver, I dont know if APS works or not. The question is: does it still work silently without the driver on Ubuntu?If APS doesn't work, is my laptop harmed when it's shaken? Does Lenovo have any solution to get ASP worked on Linux (Ubuntu)?
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Oct 14, 2008
I've got a problem with the laptop Lenovo T410s. I've put the new HDD on it (tried even the same with a different HDD too), and started to instal WIN 7 64-bit from the recovery disks. I used to do it many times so far with different Lenovo laptops without any problems. But this time, a while before the end of the instalation (when processing the sdrivebackup.wim) it stops and comes with a statement: " the recovery process has been finished, please ...." (but I see that the progres bar is far awayfrom 100%) , and finishes the instalation, reboot the computer and it comes the screen with the statement from the Windows Boot Manager:
"Windows failed to start. A recent hardware or software change might be the cause. To fix the problem (...)
File: Windowssystem32winload.exe
Status: 0xc000000f
Info: The selected entrycould not be loaded because the application is missing or corrupt"
I read a lot about the ways to solve similar problems, but they don't work on my case. The strange thing is, that I can instal WIN 8 or WIN7 from regular Windows instalation disks (not from Lenovo recovery, but from normal universal Windows instalation disks).
As I told before, I tried it in 2 different HDD disks with the same effect. It looks that the recovery instalation stops before the end without instaling some files which are missing later during starting the system.
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May 26, 2014
is theire an possible option to get an Intel 7260HMW card (wireless AC) up and running on Lenovo T430 - Type: 2350-1B6 - Bios: G1ETA5WW (2.65 ). I runs on failure on boot, assuming this is related to the BIOS, but i use the newest one.
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Apr 7, 2013
Is it possible to run a t500 without a battery? I found a t500 in my basement without a battery or adapter, however i am not sure if it works or not, so i was wondering if i could just buy the adapter to see if it boots up or not because i don't want to go through the process of returning etc.
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Dec 24, 2013
I do have Lenovo Power manager icon on the taskbar, so I can monitor the battery charge. However, if I forget to watch the icon, the laptop goes into hibernation unexpectedly. Is there a way to enable a visual alarm like an pop-up icon which would remind of low battery?
T540p
Win 7, i7 4GB x 2, GT 730M
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Sep 8, 2014
For some reason, but seemingly all of a sudden, when I plug my T530 in, the battery does not charge. When I move my cursor over the "power" icon in desktop mode, the message "Plugged in, not charging" appears. How do I alter this, so that I may charge my battery?
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May 28, 2010
I left my T400 on overnight running on battery (clearly not the brightest idea), and now it won't start up. The plug and battery lights do illuminate when I plug it into an outlet; when I turn it on, the num lock and caps lock lights illuminate briefly, and the power status indicator light illuminates. It makes a few whirring noises, and then just sits there. !
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Apr 11, 2014
I'm facing an annoying problem with my T420. When in battery mode the machine goes to sleep after some minutes. WHILE I'm working on it... But than it is NOT possible to wake it again.
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Aug 4, 2014
I just got a brand new Thinkpad T540p. I'm very happy with it, but I miss the battery indicator I had in the taskbar on my older Thinkpads:
I am trying to get it back/install it, but I keep failing at it. In particular, I have searched around ThinkVantage Power Manager software, found and installed this: [URL]
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Apr 2, 2011
Recently my T510 9 cell battery suddenly stopped working. According to the Lenovo battery utility, the battery condition is poor and it suggests replacing a battery.
However, the battery seems still have 99% capacity, either by Lenovo utility or by other softwares. Before the failing it lasts 3-4 hours and charges normally.
I read several posts online and see some people have similar problems. It is suggested that maybe one of the cells fail so the circuit stopped the battery from working/or the safety circuits just malfunctions? Or indeed I need to replace the battery.
I understand that messing with battery is risky and I believe it is detected as not working for a good reason. However, I am wondering if there is a way to assure that my battery is completely dead, but not a problem with other hardware or the OS, before I purchase a new battery. For example, using a volmeter on the whole batteryto see if I can get a reading, or opening up the battery case and test on each cell?
Is it doable to replace a single cell if one of them fails?
PS: For people who says that they connect two terminals of the battery to a volmeter and see no readings, I believe you also need to ground the safety pin to turn on the battery.
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Oct 25, 2014
I have a T420 with Windows 7 SP1. I bought a replacement battery of 0A36303 (ThinkPad Battery 70++ (9 cell)) and got one with a new Replacement part number (FRU) of 45N1007 (it is clearly written on the battery alongside “ASM P/N 45N1006”).
[URL] .....
After I installed it in the laptop and made sure to run System Update and update all the Lenovo software to its latest versions.
I also run the Lenovo Battery Firmware update utility, which informed me that the battery has the latest firmware (0003-0080-0100-0165). [URL] .....
When I run “Power Manager” (latest version, 6.66.3) and choose the tab of “Battery” I have this mismatch data:
Both “Design Capacity” and “Full Charge Capacity” shows "90.00 Wh" which almost fits the characteristics of the 0A36303 battery (as detailed at [URL] .....) which is "94 Wh" (in compare with "57 Wh" for the 0A36302 model, detailed on the same web page mentioned above)
But the “FRU part number” field says “45N1001” which fits the “0A36302” model… (as detailed at [URL] ....)
Why is this mismatch?
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Sep 3, 2014
I recently bought a Thinkpad 540p and wanted to know a way for stopping the battery from getting charged after a certain level. Its a very common feature to stop a battery from charging say after 80% and run on AC power supply directly.
Other lenovo laptops do support it, under various apps like Energy Manager, or Power Manager but I am not able to find any such options/app on my laptop?
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Feb 8, 2013
I've owned a ThinkPad T430 for about one year now. Originally I was fairly impressed with the battery life (around 4.5 hours) but now after owning it for a year I am very unimpressed with it's short 3 hour life now.
I have read that batteries should be expected to do this, although I have friends with a MacBook Pro which has lost maybe 20% of it's charge over three years not one year like my ThinkPad!
My specs are listed below:
OS: Windows 8 (upgraded from 7)
Ram: 8GB (4*2 DIMM - came with 4GB and I upgrade it with 4 more)
CPU: i5-3210M 2.5GHZ
Hard Drive: Samsung 840 Pro 256GB SSD (upgraded from the 320GB 7200RPM HDD before...if I have got those specs right)
I recently installed the new SSD and expected to see my battery life shoot up again (hopefully at least half an hour) but I really haven't noticed any such improvement.
I use the battery frequently for school and run the battery down to about 20% maybe twice a week on school weeks?
Is this kind of deterioration to be expected and should I simply purchase a new battery if I need that extra 1.5 hours?
According to the Windows 8 battery report the original full charge capacity was: 49,286 mWh, now it is: 39,780 mWh.
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Mar 21, 2014
I use a T440 with WIN8.1 pro machine but for whatever reason the external battery has stopped charging. As this laptop is only 3 months old Lenovo send me a brand new one but the outcome was the same, the charge symbol comes up on my screen when rebooting the machine and shortly after stops completely. I have now had my internal battery pack changed and again no improvement.
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Oct 6, 2014
I use a T440 with Windows 8. External battery not charging. Always 0%. The internal battery is charged to 80%, external battery will not charge. If I disconnect the external battery, the internal charging to 100%. Did fully discharge, it is still only charged internal battery.
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Jul 31, 2014
I just got my T440s a couple of weeks ago. I stupidly ordered it with only 4GB of RAM, thinking that I couple upgrade it myself if neccessary (and it would be much cheaper that way).
Well it seems 4GB definately isn't enough for my needs, so I ordered another 4GB stick. I installed it, plugged the machine in and powered it up. And was met with the tone for a memory error. Probably the module isn't seated correctly, but I suppose it could be faulty.
Anyway, you'll notice I said that I plugged it in before powering up. That means that the internal battery has been reactivated. I can confirm this because it will start (and give me the error) without being plugged in and without the external battery connected. So my problem is, how do I disable the internal battery again to remove or reseat the problem DIMM, since I can't get to the UEFI/BIOS configuration to disable it.
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Nov 12, 2014
I have a look at my battery report today and found something really awkward. I bought the computer seven months ago, and the battery start with Design capacity 44,000wWh, while the full charge capacity is quite closer to the design capacity. However in the battery report it shows that two weeks ago the design capacity suddenly drop from 44000 to 40734mWh in one week, and then afterwards it drop to 39000mWh. And the actual full charge capacity seems to linger around 37000mWh. Is there something wrong or is my battery just wear out naturally?
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Oct 30, 2012
I recently upgraded my ThinkPad T430s to Windows 8 Pro and ever since my ultrabay battery gives me an error when ever I restart or turn the machine on. It goes away after I hit ok and the battery appears to still be functioning but the error is super annoying. I have the latest drivers and software from Lenovo and I have already had the battery replaced via tech support. Its so annoying i'm tempted to see if I can just get the whole unit swapped.
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Dec 22, 2014
So I bought a new battery for my T430 laptop in August and it was working great. Then suddenly tonight it started giving me the error above: '' The battery installed is not supported by this system and will not charge. Please replace the battery with the correct lenovo battery for this system,''
I tried troubleshooting my uninstalling and reinstalling the Lenovo Power Manager. I also updated the BIOS. Neither of those gave me any luck. I tried getting rid of the microsoft acpi-compliant control method battery, but that keeps coming back.
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Jan 29, 2015
I have a T440P, Up to recently, I was in Windows 7 with Lenovo Power Manager set with threshold charging limited at 63%, So far so good. Now, Windows 8.1 has been installed from scratch (Not an upgrade).
The laptop with windows 8.1 still stop charging at 63%. But there is no Lenovo Power Manager available for windows 8.1. I don't find any solution to deactivate this limitation...
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May 4, 2014
I am using Lenovo T500 laptop for last 2 years. yesterday suddenly its battery stop charging and a red light of battery start continuously blinking. i have read many forum for charging solution and found one solution, i press the power button for 30 sec and then insert battery and charger cable. With this trick battery start charging but after 2 hours battery again stop charging. Till now battery is not charging......
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Dec 26, 2013
just got a slice battery 42T4739 for T430. I am getting an error - The battery installed is not supported by this system and wil not charge. Please replace the battery with correct lenovo battery for this system.
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Sep 18, 2012
When I use the battery as the power of my laptop, it always shutdown abnormally before the battery reach the “critical low battery alarm”.
For example, I set the power manager to sleep when the battery lower than 10%. However, it will out of power when the battery reaches 12-13%. It wasn’t a normal shut down, it suddenly goes down without any alarm. It seems that the power been cut down by someone.
My laptop is a new thinkpad T430s, it seems something wrong with the battery. I try to Perform Reset the battery, but it still not work.
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Jun 13, 2008
Installed Power Mgr 6.63.1. When click on the green battery symbol the program does not start only pops up in the activity field as a red icon (battery symbol). I am used to that the program starts and I can change power settings, look at battery condition etc. I have reinstalled it twice with same strange result....
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Aug 17, 2014
On my T540p, I configured the rapid start technology according to [URL] ....
Since I have performed a BIOS update to 2.14 and an update of the Intel Wifi driver to 17.0.5, I experience the problem of battery drain when the computer is in S4 sleep state, at a rate of approximately 0.125% per hour (on the 56Wh battery).
This was not the case before these updates. There was no noticable power drain in S4 sleep state, even not over multiple days. I'm using Win7, I set all the WoL capabilities both in BIOS and in the Intel driver to disabled, according to [URL] ....
External device USB charge settings are also fully disabled in BIOS and Power Manager. The problem does not occur when the system is fully shut down, but in S4 Sleep state, which should be a zero-power state too, as it was before the updates. In the details of the BIOS update it is stated " Fixed an issue where the computer might fail to enter sleep state". Could the power drain be a side effect of this fix? Or is it an issue with the (new) Wifi driver, as it was the case for the Y410P?
How could this battery drain be avoided?
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May 4, 2014
Bought a refurb T400 and installed a PNY SSD in it. It POST's okay and I can access bios. I can also read/install Linux from DVD just fine.
Trouble is when I insert my win7 home premium DVD into the drive and boot it, I get POST and then I get a black screen. It seems to be reading the drive and when I interrupt with the Esc key or open the DVD drive, I get a Windows menu explaining that the installation has been interrupted.
I've looked at the bios options and can't see anything obvious that should be changed.
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