Lenovo T420 - Batteries

I've just bought a refurbished Lenovo T420. The specs include an Intel i5- 2520m processor, 2.50GHZ CPU, 8GB of RAM and 500GB HDD.
The reviews I've read are excellent, but they all praise the battery life of the 9 celled T420 (10 hours battery life, hard to beat etc.), but the T420 I've bought is 6 celled - Can anyone tell me what the battery life of the 6 celled T420 is?
Also, whether the 6 celled battery is interchangeable with a 9 celled variant if I wanted to purchase one in the future (and which 9 celled batter to purchase).
Thank you for reading.

JCRendle wrote:
I've just bought a refurbished Lenovo T420. The specs include an Intel i5- 2520m processor, 2.50GHZ CPU, 8GB of RAM and 500GB HDD.
The reviews I've read are excellent, but they all praise the battery life of the 9 celled T420 (10 hours battery life, hard to beat etc.), but the T420 I've bought is 6 celled - Can anyone tell me what the battery life of the 6 celled T420 is?
Also, whether the 6 celled battery is interchangeable with a 9 celled variant if I wanted to purchase one in the future (and which 9 celled batter to purchase).
Thank you for reading.
Hi there, all T420 and T420i laptops use the same type battery. (T420s and T420si models use a different battery). You simply need to look for battery "70++" which is the 9-cell version for your T420. (70+ is the 6-cell version). Useful battery guide provided by Lenovo here:
Batteries and Battery Charger - Reference Guide
http://support.lenovo.com/en_US/product-and-parts/detail.page?&LegacyDocID=MIGR-4TCMN7
When shopping for batteries it's best to get a Genuine Lenovo battery whenever possible. The after-market, replacement batteries are often of inferior quality, and often not held to the same safety standards during the manufacturing process as the O.E.M. batteries. They may even cause your laptop to overheat, or behave erratically. T420 system service parts has a few FRU P/N (part numbers) for the 9-cell battery but is a bit outdated in listing "55++" model numbers. While "55++" batteries will fit, they have been superseded/ replaced by the more newly manufactured "70++" batteries. See my post here for a slight elaboration on that: http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/Battery-failed-with-99-capacity/m-p/1614594...
So just look for a Genuine Lenovo battery with the "70++" red dot logo and you will be OK. Some unscrupulous Hong Kong or Chinese vendors regularly counterfeit/ sell "knock-off" (fake) batteries even using the Lenovo logo so be careful. Here is a picture of a New, Genuine 70++ battery I recently shipped to a customer:
Have a great day. (I do not work for Lenovo)

Similar Messages

Target Display Mode: Lenovo T420 DisplayPort to iMac (2nd screen) does not work

Configuration:
- Laptop Lenovo T420, DisplayPort, Windows 8.1
- DisplayPort cable, Adapter to Mini DisplayPort
- iMac (Intel, 27-inch, Mid 2011) as 2nd screen, connected via Mini DisplayPort Adapter, Mavericks OSX 10.9.1
Problem:
- iMac does not start Target Display Mode
- Even cannot be forced via Cmd + F2 or Cmd - Shift - F2
Test:
- Lenovo via DisplayPort cable to 2nd screen works fine
- Can switch between PC only, Duplicate, Extend display
Question:
- What is wrong?
- What can be done to idenify the root cause?
Kind regards, Marcel.

Hello Marcel,
It sounds like you are wanting to use the iMac in Target Display mode with your PC. Target Display mode is a feature that is supported from one Mac to another Mac according to this article:
OS X Mavericks: Use another Mac as a display
http://support.apple.com/kb/PH14264
Target Display Mode lets you use a Mac as the external display for another, “primary” Mac.
Thank you for using Apple Support Communities.
Cheers,
Sterling

Lenovo T420, Type 4177 Review

Lenovo T420, Type 4177-CTO. Windows 7 Pro, 64 bit. 8 GB RAM, 500 GB HD, third party 128 GB SSD added.
After inspecting many laptops I chose the ThinkPad T420. The only better laptop was Apple and I needed different software.
An important consideration for any computer is support. Lenovo has excellent support at 1-800-426-7378. Tech support and repair happens right here in the United States. Repairs are done in Tennessee.
The Lenovo ThinkPad T420 is a solid laptop. It is not as light as some laptops but strength and durability need to be considered. Weight of machine with a large 6 cell battery and a slice battery = 6 lb. 7 oz. (3060 kg). The laptop weighs 5 lb. 5 oz. (2430 kg) with just the large 6 cell battery. The 6 cell battery weighs 1 lb. 1.5 oz. (500kg) and the 6 cell battery would then weigh 1/3 less. You can compute the difference. Keep in mind my battery life with the slice battery installed is about 17 hours. The slice battery also places the laptop on a slight angle with the rear elevated. It is about the same tilt as with the docking station. You cannot have the slice battery installed while the laptop in in the docking station.
The 6 cell battery sticks out the back so it is not a perfect cosmetic fit. The 4 cell battery will look nicer, be lighter and probably last about 4 hours.
The overall design is perfect in my opinion. I find no problems. The T420 uses the LED night light that shines from the top of the display to the keyboard area. It can be turned on and off with the Fn function key. There are many Fn function keys that are great. I really like the Fn-Space bar that magnifies the display.
The speakers are well positioned and are adequate. They could have higher volume considering where they are installed.
I really like the Lenovo mouse pad and mouse button configuration. I wish the mouse speed adjustment would go a little faster but it is acceptable. Some laptops I tested are far too slow, even with the mouse settings as fast as they go. The T420 has the best mouse operation of any laptop.
The Windows Pro 7 operating system and Lenovo will only allow one set of recovery disks. Do your backup recovery disks with good quality DVDs. Lenovo will provide a set of recovery disks if you need them. DVD-RAM is not supported by the Recovery Disks, but SSD drives are supported. The Lenovo T420 is designed to run on SSD drives.
Recovery Data notes. If you stop in the middle of Disk 4, you will have the first 3 disks and you can still make a copy of all 4 disks. At the end of disk 4 the computer turns Recovery disk copy off. You cannot make more copies.
Disc 1, Boot Media
Disc 2, Recovery Media 1
Disc 3, Recovery Media 2
Disc 4, Recovery Media 3
Notes:
HD Boot time = 41.4 seconds
SSD Boot time = 29.6 seconds
This is with little software installed. With more programs installed the boot up time will increase. Keep in mind the first phase of boot up consists of BIOS and hardware communications. With many programs installed the SSD will really be nice. The Registry loading will be totally SSD dependent and fast.
HD partitions and size before SSD installation.
Lenovo Recovery partition = 9.67GB used + 5.94GB free = 15.63GB
System Drive partition = 3.34MB used + 865MB free = 1.17GB
Local Disk C partition = 27.9 GB used + 420 GB free = 448.96 GB
Total GB = 465.76
Window Performance test.
4GB RAM installed
7.1          Processor
5.9          RAM
4.7          Graphics
6.4          Gaming Graphics
5.9          HD
8GB RAM installed
7.1          Processor
7.5          RAM
5.9          Graphics
6.4          Gaming Graphics
5.9          HD
SSD and 8GB RAM installed
7.1          Processor
7.5          RAM
5.9          Graphics
6.4          Gaming Graphics
7.1          HD
Adding SSD card
(I used the MyDigitalSSD 128GB 50mm Bullet Proof mSATA PCI-e drive. Some SSDs are a little faster but cost much more.)
Install SSD
Initialized SSD card in My Computer, Manage, Disk Drives
Turn off laptop and remove HD
Boot to Recovery discs
Restore to factory default. (The Recovery disks only have the SSD to restore to)
When finished you can test the operation of your laptop on the SSD drive. Test by going into your BIOS to make sure you know how to get there. Boot using F1 for BIOS setup.
Turn off the laptop and install the hard drive.
Boot to BIOS (Do this first before booting Windows)
Remove HD from boot sequence. Go ahead and setup your boot sequence to something like SSD, DVD, and then USB, etc. Do not include the HD
Then I go to My Computer, Manage, Disk Drives and I do some major changes here.
You must make your own decisions. The SSD drive is prime real-estate and a 20GB recovery partition is out of the question (for me). The Recovery discs have been created. I decided to merge partitions on the SSD drive. Windows 7 Pro will handle this easily on the active drive. Now, there are actually 2 smaller partitions and the smaller 1GB partition cannot be removed. Apparently the operating system needs it. The larger 19GB partition can easily be removed and added to the C drive. No 3rd party partitioning software is needed with Windows 7 Professional. Go to Start, right click My Computer, left click Manage. Select Disk Management. Select the Lenovo_Recovery partition and remove it. Now select the primary partition (C: drive) and select merge. Use the full size of the deleted partition space. The System_Drv partition could not be removed on my SSD. It is only 1.17GB and probably essential.
Change drive letters in Manage, Disk Management. Fortunately the main drive was named the C drive. I do not think you can change the drive letter of the active drive partition for some operating systems. After reinstalling the HD there is no telling what letter Windows will give it. Rename it to D drive if you want to. You can also remove the Recovery partition on the hard drive. I decided to depend totally on my backup restore DVDs and knowing Lenovo would send me another copy if needed.
The computer controls the use of the 2 video card functions but it can also be controlled in the BIOS.
Your warrantee is not void if you install the memory or SSD. The machine is designed for those additions. The installation of my extra memory was a tight fit. Be careful. Don’t use metal tools or do anything stupid.
Notes: Boot to F11 for recovery. F12 for selecting boot device. Boot using F1 for BIOS setup. The ThinkAdvantage button takes you to a variety of places. I don’t really know where it goes.
Now if you are looking for the User’s Guide you will only find the Hardware Manual. It takes the place of the User Guide and is formatted a little differently. It is OK.
Most other attributes of the laptop are on the selection menus on the Lenovo web site. You can get just about anything you want except the T420 did not have a Blu Ray player at the time I ordered mine. It did not have a GPS option but it could be obtained via 3G subscriptions using telephone towers. If you want a real GPS you can buy many 3rd party USB modules that will tell you where you are at using global satellites.

Hi s78749,
Thanks for the review. After reading it I was ready to give away my T400 and call sales
As a point of reference, here are some numbers from my trusty T400 (2764-CTO, 8G RAM, 500G/7200RPM Hitachi HD, WIn 7 Pro 64 vanilla MS install + Lenovo apps and utilities):
Boot times:
Power on to Win login screen: 45 sec.
Power on to desktop (including 5 sec of typing password) 60 sec.
Windows Experience Index:
(integrated graphics)
Processor: 6.1
RAM: 6.1
Graphics: 4.1
Gaming: 3.5
HD: 5.9
(discrete graphics)
Processor: 6.1
RAM: 6.1
Graphics: 4.8
Gaming: 5.6
HD: 5.9
Hmm, maybe I'll keep it
Thanks again,
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
English Community Deutsche Community Comunidad en Español Русскоязычное Сообщество

Anyone have any luck Imaging a Lenovo T420 with ZEN 10?

I have a ZEN 10 server setup and got the latest (March 2011) BootCD.iso, but still am unable to image one of the New Lenovo T420 Laptops. Has anyone had any luck, or have a bootcd.iso that will work with them?
Thanks
Bill

Originally Posted by schoenb
I have a ZEN 10 server setup and got the latest (March 2011) BootCD.iso, but still am unable to image one of the New Lenovo T420 Laptops. Has anyone had any luck, or have a bootcd.iso that will work with them?
Thanks
Bill
Try this one: NOVELL: Downloads - ftf_zcm11_e1000e_1.3.10a.zip
Thomas

Lenovo T420 Intel LAN Vista drivers missing from Lenovo download site

Hi,
Im trying to find Intel LAN Vista driver for Lenovo T420.
I cannot see Vista driver listed here http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-77167
I need Vista driver for Windows PE2.1 so i can use PXE boot on Altiris Deployment solution.
If anyone knows where to find working driver for Vista that would help me a lot.
Thanks!

hey outouser,
only thing i could suggest is to check with Intel if they have drivers for the LAN card.
WW Social Media
Important Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
Follow @LenovoForums on Twitter!
Have you checked out the Community Knowledgebase yet?!
How to send a private message? --> Check out this article.

Issues with lenovo t420s

I have three issues with my lenovo t420s, they might be related but I'm just not smart enough to fix them.
1:By default the bios is set to using optimus, and if I leave it at that x starts up all right but I don't think it is using the discrete graphics card at all? If I change the bios to use discrete graphics X fails with message "no screen found". I have seen this is an issue with optimus-laptops but I have also seen reports of getting it to boot of the discrete graphics card. So my question is simply, should it be possible to boot it of the discrete graphics card? (I have tried using both nouveau and proprietary drivers).
2: It doesn't see my display port connection. Running xrandr just shows LVDS and VGA connection, shouldn't the display port show up as well? On a side note up unitl yesterday xrandr responded with LVDS1 and VGA1, but after updating to 3.2 kernel it now responds with LVDS2 and VGA2?
3: Sometimes when I boot it thinks the vga is connected and boots with the wrong resolution. Running xrandr VGA says connected even though no cable is connected, running xrandr --output VGA1 --off --output LVDS1 --auto (or VGA2 and LVDS2 as of yesterday) fixes the issue.
Regards

Hello OMGitsUGOD,
i run into the same problems with my t420s, at least problems 2 and 3. I did not try to use optimus or discrete graphics settings in BIOS. I think there is something in the wiki about this, maybe you should take a look at that? https://wiki.archlinux.org/index.php/Le … IA-Optimus

Where to Get Lenovo T420 Parts?

I need a 04W1640 (rubber rails for 7.0mm hard drive in 9.5mm bay) for my Lenovo T420.
I called the number listed for parts on the Lenovo website, and they said they didn't sell that part (they sell others, but not that one).
What is the best place to get that sort of thing? This question is especially applicable because my computer is aging and parts will get harder to find as time goes by ...
Solved!
Go to Solution.

Hi,
Welcome to Lenovo Community Forums!
You can try searching for the part with FRU number in eBay, amazon or IBM maintenance parts.
Alternatively, refer the below links and see if it helps.
http://www.newmodeus.com/shop/index.php?main_page=product_info&products_id=411
http://www.thinkpad-parts.com/04W1640-Thinkpad.html
Best regards,
Mithun.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

OCZ AGILITY 3 compatibility with Lenovo T420s

Hi everyone,
Wanted to know whether there is any option to put my Agility 3 into the Lenovo T420s laptop? I know that it supports only 7.5" SSDs, but was wondering if there's something to do about it?
Thanks

Anyone for help?
Also, if it's really not an option, can I still put this 9.5mm SSD drive into the ultrabay instead of the optiocal drive?
Thanks

Elements 11 - Lenovo T420 - Panasonic Camcorder SDR-H100 - Clips in .MOD - clips are all squashed.- tried changing to .MOV . Please Help

Lenovo T420 computer - Using Panasonic Camcorder SDR-H100 which produces it's clips in .MOD format(tried changing to MOV - no change) using Elements 11 frames are all squashed - what am I missing? Please help -I can load the clips into windows movie maker and they work fine.

The answer to your question depends on which model JVC camcorder you have.
Here are a few basics:
1. If you have a JVC HD Everio that records in the AVCHD high definition file format (.mts file extension), and you have an Mac with an Intel processor, (sound like you do) running iMovie '08 or '09, then it should be no problem. Simply connect the camcorder via USB and launch iMovie.
2. If you have a slightly older JVC HD Everio that records MPEG2 high definition (.tod file format), then it is easiest if you record in the special 1440CBR mode, and transfer your video to your Mac using an i.Link (Firewire Connection) using the "Playlist Dubbing" process which is explained in your owner's manual.
See also this post from Chris at JVC dated March 4, 2010 at the end of this thread:
http://discussions.apple.com/thread.jspa?threadID=2341218&tstart=0
If you have further problems contact JVC.

Lenovo T420 Unexpected Sudden Shutdown Issue

I have more than 20 laptops in my organization with Windows 7 Enterprise Edition (32 Bit operating system) & i got a very strange same issue in all laptops. Lenovo T420 Shutdown automatically while on working. It doesn`t matter its on battery or AC Power. Kindly help me to resolve this issue if there is some type of patch or hardware changes required.
Many Thanks for your Support.
Waiting for your prompt response.

Me too..
T420, 4328 AA7, Windows 7 Pro.
Monitor suddenly black, there is a red line on the left side of the monitor. Then the laptop shutdown.
Laptop motherboard has already been changed by IBM technicians, but the problem persists.
BRs Nahar

Lenovo T420 Integrated Camera Crashes

I have a Lenovo T420 and have some funky issue with my Integrated Camera. The camera seems to crash whenever I pull the display closer towards the keyboard. And if the display makes a 90 degree angle or less with the keyboard it never works. See below drawing for problem details.
Can anybody help me shed some light on this weird problem and how I might fix it?

It does not happen on my T520 with Fedora 18.

Problem with installation Win 7 Pro OEM - Lenovo T420

I have a Lenovo T420 Laptop.
I have a problem with the installation of Windows Professional. During the installation, you are trying to enter the original key, which is located under the battery laptop. After entering, it displays something like this:
"The key is incompatible with the current storage unit ID windows"
With what could be the problem? I record Windows Professional X64 GB from a DVD.

I called to Microsoft and they said the key can be installed on x64 and x32.
Is the Lenovo T420 must be some special plate with the system?

How to print screen on lenovo T420?

Hi there, How to print screen on lenovo T420? I can't find the print screen key... Thank you
Solved!
Go to Solution.

I don't know what the key combo is, but you can use the Windows 7 snipping tool for a full-screen shot.
Snipping Tool
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
English Community Deutsche Community Comunidad en Español Русскоязычное Сообщество

[SOLVED] Blank screen since full update Lenovo T420

I just did a full update after a couple of months on my Lenovo T420. The update was successful, no errors reported. I decided to reboot for good measure because the kernel probably changed. I was met with a blank black screen right when the BIOS hands it off to arch, no usual scrolling messages. I've waited over 30 minutes on it, no hard drive activity.
Ctrl-Alt-Fx don't work.
How do I proceed from here? I assume I can load some livecd and look up a log somewhere. Where should I look?
Any help is appreciated.
Edit: I was able to boot into it by rolling back to the previous kernel 3.12.1-3. However, now it gives 'Failed to Start Load Kernel Modules' during boot.
Edit 2: The error message is gone after I downgraded tp_smapi to 0.41.39
Last edited by dave_null (2014-02-04 06:14:24)

So I installed linux-lts, and it solved the issue. I get full resolution console and X now. So I guess the latest kernel has a bug in it. Unfortunate.

Lenovo t420 ExpressCard 8360 troubleshooting help needed

Hi all,
I need help with getting MAX to recognize my 1033 chassis and the associated cards. When I powered it up last time MAX recognized the DMM and the Freq Source but hung badly (hard reset of PC) when trying to use NI-Scope. Now I can't even get the chassis to show up in MAX. Please help me
I have a NI ExpressCard 8360, a Lenovo T420, and a 1033 chassis w/ 5122,4070, and 5404 in slots 3,4, and 2. I'm running LV 2012 f5
Description: The two green lights on the 1033 are lit. The chassis was turned on for one minute before turning on the PC. MAX was started. The only things showing up in Devices are the simulated devices if configured. No 1033...
My software configuration is LV 2012 Service Pack 1 V12.0.1f5 (32 bit)
When I look at Device Manager in Windows unders System I see "PCI bus" but nothing like PCI bridge to bridge. Not sure if I should or not...
Any pointers would be helpful.
Thanks,
JD360

Hi JD360,
As long as the Express card is working properly and you do not have MXI Compatibility Software installed, there should be a PCI-PCI Bridge in device manager. Sometimes this has a yellow bang next to it if it has not been recognized properly, but it should be there. Can you verify you don't have the compatibility software and double check the device manager to see if there is a PCI-PCI bridge?
Some more general quick questions to help troubleshoot:
1) What OS do you have?
2) What DAQmx version do you have?
3) In Windows Services, is PXI Platform Services started and running?
4) In Windows Services, is NI Device Loader started and running?
I hope this helps,
Eric E.

Lenovo T420 - Batteries

Similar Messages

Maybe you are looking for