Question about IBM ThinkPad T20 2647 Notebook

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Critical low battery error 190

I went out of town for a week and now my notebook won't start because of this error with the battery. do i need a new battery?

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This sounds like a fail safe in the battery has engaged. See if the machine will start without the battery, on the supply only. If you can get it started then put the battery in and see if it will charge or reset the fail safe. Give it about an hour, then shut it completely down and restart it with the battery in. If it won't start at this point, then you will need a new battery.

Posted on Aug 28, 2008

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Hi there,
The Error code 190 is to tell you the battery pack needs charging and the battery is essentially flat. Obviously the battery is exhausted after trying to keep your memory contents live for the week, so my recommendation would be first to take the battery out and reconnect the AC power adapter to system with the battery removed.

Once you have done that try and boot the system as normal and then once it has booted correctly shut the system down and re fit the battery. Then without turning the system on put the AC adapter back on and the battery charging light should come on, and then reboot as normal.

I hope that would clear the condition.
Best wishes.

Posted on Aug 28, 2008

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Battery has been charging to 100%. Suddenly would only charge to 76 percent. Now, after two weeks, will max at 62 percent. Computer is 1 year old. Can battery meter be recalibrated?


Pulled from Gateway's website:
Do not interrupt the battery recalibration process. If recalibration is interrupted, you must start the process over again.

  1. Close all open files and programs.
  2. Connect your notebook to AC power and allow the battery to completely charge.
  3. Disconnect the AC power and restart your notebook.Note: If the power cord plug.gif or battery baticon.gif icon does not appear on the taskbar, click the show hidden icons showhidden.gif button. If the icon still does not appear, verify thatAlways show icon on the taskbar is checked on the Power Options Properties Advanced tab.

  4. Completely discharge the battery by doing the following:

    1. From the desktop, right-click on the power icon, then select Adjust Power Properties.
    2. Click the Power Schemes tab.
    3. Click the arrow button to open the Power Schemes list, then click Always On.
    4. Click the Alarms tab.
    5. Click to remove the check mark from the Low battery alarm and Critical battery alarm checkboxes. Let the battery drain until your notebook automatically turns off.

  5. After the battery is completely drained, reconnect your notebook to AC power.
  6. Charge the battery completely until the yellow battery status indicator goes out.
  7. When you are ready to use your notebook again, do the following:

    1. From the desktop, right-click on the power icon, then select Adjust Power Properties.
    2. Click the Power Schemes tab.
    3. Click the arrow button to open the Power Schemes list, then click Always On.
    4. Click the Alarms tab.
    5. Click to select the Low battery alarm and Critical battery alarm check boxes.

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