Question about IBM ThinkPad T40 2373 Notebook

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IBM Thinkpad T40 will not power on from full battery

I have a IBM T40 the battery is fully charged but will not power on with the ac unplugged. I get a quick flsh of lights when I hit the power button and hear the fan but nothing. I can plug the ac in and it power right up and shows a fully charged battery.

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  • Will Nelson Jan 29, 2009

    One flash of the lights and I hear the fan come on for a breif second

  • ROD GANDY May 11, 2010

    HOW MANY FLASHING LIGHT AND WHAT IS THE DERRATIONS OF THE LIGHT TIME



    FAST LIGHTS FAST AND LONG LIGHTS OR BOTH OR MIX LIGHT SIGNAL



    CANDYMANGANDY

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  • Master
  • 2,404 Answers

Bad battery, needs to be replaced.

Posted on Jan 30, 2009

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2 Answers

My ibm wont turn on unless the charger is in it just wont turn on.


The battery must have gone bad! if its three or more years old you need to get a new battery for the computer. Periodic conditioning of the battery from first use may prolong the battery life. Battery life is reduced by plugging computer with battery all the time.
Conditioning. Periodic full charge and full discharge practice is good for battery. Batteries are better charged when they are at less than 10% power and its better to charge them to 100%. Do not leave on electric power once they are fully charged.
I hope this helps in future but current battery may need replacement!

Sep 14, 2011 | IBM ThinkPad T40 2373 Notebook

Tip

IBM Laptop Battery Power Saving Tips


How to try to extend the battery life are much concerned by many laptop users. Utilizing some small skills and minimize unnecessary waste of battery during the using process can make you full use of your laptop battery power.
The engineers of IBM personal computer business division give vast laptop users some good suggestions here to ensure that you can maximum extend laptop battery utility time. Therefore, it will improve your work efficiency; let you enjoy mobile office work and entertainment pleasure without limits.
IBM batteries on sale :

IBM thinkpad t40 Battery £ 37.52
ibm thinkpad t41 battery US $ 41.24
ibm thinkpad r60 battery. US $ 71.27
IBM ThinkPad T60 Battery £ 38.51

* Turn down the brightness of the screen. At the same time, although IBM ThinkPad laptop keyboard is equipped with lights, ThinkLight, but in order to save power, it is better to turn on it when under darkness conditions.

* When not using the wireless receiver device, turn it off please.

* Some users like opening CD or DVD to play music anytime, the power of battery will flow away quietly along with the music playing. Suggest everybody turn on the music only under the situation that they do want to enjoy the music.


* When the battery during using process, try to fully charge and discharge the battery.


* Try to avoid using it under high temperature and low temperature, for example, when you enjoy sunshine on the beach, please don’t leave your laptop in the car to enjoy SAUNA.


* Use proper AC adapter for your ThinkPad laptop.


* Use the IBM ThinkPad battery Battery MaxiMiser management software you select the most suitable for the extension of the power program.


* Use the IBM ThinkPad battery management software – Battery MaxiMiser, select the power extension program which suitable for you.


* Setup the standby time of monitor, hard disk and system sleep time, because it is no need to let your laptop still running at full load when you are at non-working stage.


* Under the Intel SpeedStep technology effect situation, the processor based on the current load situation adjusts the speed automatically to save battery power overall.


In fact, the laptop battery is a spiritual guy, after got expert advices, please treat it properly, it will bring you to enjoy a better mobile life.
battery info via:
http://www.sales-battery.com
http://www.global-battery.co.uk

on Jun 04, 2010 | Computers & Internet

2 Answers

Hello, I have an IBM ThinkPad t40 and my battery will not charge. It runs on AC power but shuts off as soon as AC is removed.


You should replace the battery. I wish I had a better answer, but that's pretty straight forward.

Mar 04, 2010 | IBM ThinkPad T40 2373 Notebook

2 Answers

My IBM T40 boots to a black screen with the "z"(light at top to right of power.


Try these steps:

1. Remove battery and unplug AC adapter
2. Press power on button for 30 seconds or so (one min is also too)
3. Attach battery and plug into wall
4. Power "ON" as normal

If you are still getting the "Z" and a black screen then I would have the video card or hard drive looked at and replaced. Start with the video card and then look at the hard drive


thinkpad-t42-wont-boot.html">http://www.techsupportforum.com/hardware-support/laptop-support/234433-ibm-thinkpad-t42-wont-boot.html

Feb 17, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

Probleme power ibm thinkpad t40


Check your Battery if it take charge. Then check if ever your laptop start without the battery.

Feb 15, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

My ibm-t40 think pad will not charge


What do you mean not charge?? If you have the AC cord in and the battery out will the laptop turn on with out the battery? If so your battery is dead and this is a common issue.

I suggest contacting IBM or finding one on ebay as they are much cheaper!

Jan 20, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

I have had my IBM T40 Laptop for over 8 years now. I have never really traveled with it using the battery only. The battery charge light has recently been showing amber and not reaching fully charged. Is...


Normally batteries need tro be constantly used or they drain out of power. Long term of non use kills the batteries, in this instance I think is what has happened. You will find that a new battery should solve your problem. I hope this helps.

Nov 03, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

Power connector of T40 think pad loosen


if you think your adapter really works fine then you have a  motherboard issue.

May 28, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

IBM T40 the battery is fully charged but will not power on with the ac


Have you disabled your battery
is your battery showing
check control panel\power options
does your battery show as 100 % charged
then you can also check device manager for battery
Let me know

Jan 29, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

X41 Tablet PC the battery shows good but computer will not work


Some times a battery can pickup a dead short, and even though it shows a charge it will not work. The other possibilty is the power management chip on the mother board. This chip allows the computer to charge the battery and switch from battery to AC. (Right now I have a Thinkpad that will only run on battery, bad PM chip) Try replacing the battery first, if that doesn't work, then unfortunately the motherboard will have to be replaced.

May 24, 2008 | IBM ThinkPad T40 2373 Notebook

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