Question about IBM ThinkPad T40 2373 Notebook

1 Answer

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.

Posted by on

  • 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






1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,404 Answers

Bad battery, needs to be replaced.

Posted on Jan 30, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

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

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


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

Not finding what you are looking for?
IBM ThinkPad T40 2373 Notebook Logo

262 people viewed this question

Ask a Question

Usually answered in minutes!

Top IBM Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18417 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you an IBM Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides