IBM ThinkPad T41 CMOS Battery Replacement

This is a step by step guide for replacing/repairing the BIOS battery of an IBM ThinkPad T41 laptop. It will aid you in taking apart your laptop to reach the BIOS battery.

This repair guide will aid you in taking apart your IBM ThinkPad T41 laptop to reach and replace its BIOS battery.

Do not uninstall the battery when is Setting a Supervisor Password!

Edit Step 1 Keyboard  ¶ 

Image 1/1: Remove all 17 screws on the bottom of the computer.

Edit Step 1 Keyboard  ¶ 

  • Close the screen and turn the closed laptop over.

  • Remove all 17 screws on the bottom of the computer.

  • The multiple colors (turquoise, red, blue, orange, yellow, and purple) are for organizational purposes, indicating different screws.

  • The yellow marker at the rear denotes the UltraBay device retaining screw. This screw is optional as the UltraBay mechanism will hold the drive or battery in place anyway. The yellow marker at the front denotes the hard disk caddy retaining screw.

Edit Step 2  ¶ 

Image 1/1:

Edit Step 2  ¶ 

  • Remove the extra RAM cover, by lifting where the screw was and pulling out.

Edit Step 3  ¶ 

Image 1/1: Lift the keyboard, using a spudger at the seam between the keyboard and trackpad.

Edit Step 3  ¶ 

  • Turn the laptop right side up and open the screen.

  • Lift the keyboard, using a spudger at the seam between the keyboard and trackpad.

  • Careful of the ribbon cable underneath, which may tear if the keyboard is lifted too vigorously.

Edit Step 4  ¶ 

Image 1/1: Remove the keyboard.

Edit Step 4  ¶ 

  • Unplug the keyboard’s ribbon cable, by lifting up the edges of the plug.

  • Remove the keyboard.

Edit Step 5 Trackpad  ¶ 

Image 1/1: Remove the five plastic stickers covering the screws on the front edge of the case.

Edit Step 5 Trackpad  ¶ 

  • Close the laptop and turn it over.

  • Remove the five plastic stickers covering the screws on the front edge of the case.

  • In order to reuse the stickers, remove them carefully.

Edit Step 6  ¶ 

Image 1/1:

Edit Step 6  ¶ 

  • Unscrew the five screws that were hidden by the stickers.

Edit Step 7  ¶ 

Image 1/1: Lift the trackpad assembly by placing hands on both edges and then pull towards you till it is free of the case.

Edit Step 7  ¶ 

  • Turn the computer right side up and open the screen.

  • Lift the trackpad assembly by placing hands on both edges and then pull towards you till it is free of the case.

  • Be careful of the ribbon cable underneath. It may tear if the trackpad is pulled too vigorously.

Edit Step 8  ¶ 

Image 1/1:

Edit Step 8  ¶ 

  • Unplug the trackpad’s ribbon cable by pulling on the white plastic tab.

Edit Step 9 CMOS Battery  ¶ 

Image 1/1:

Edit Step 9 CMOS Battery  ¶ 

  • Lift the yellow plastic-covered battery up.

Edit Step 10  ¶ 

Image 1/1:

Edit Step 10  ¶ 

  • Unplug the battery connector.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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7 Comments

Add a comment

You will need to buy the dc jack that has the the wire harness on it, the wires in the computer are soldered to the jack so if you try to use them will result in a smaller wire to work with and you will not beable to connect the ribbon from the monitor to the MB

Shawn Fontaine - Reply

It is absolutely unnecessary to remove all of the screws as shown in the first image, in fact it would be counter productive to do so. One need only remove the screws that have a symbol of either the keyboard, the palm rest or both. The screw locations also have numeral indicators adjacent to them showing the specific size screw for that location.

For easy battery replacement follow these video guides:

http://support.lenovo.com/en_US/product-...

and

http://support.lenovo.com/en_US/product-...

James Maugham - Reply

great review, for rtc / cmos batteries try http://bestbattery.biz/IBM/225980-ThinkP...

the battery life is excellent

Kermit45 - Reply

thank you very much for your help

For easy battery replacement follow these video guides : https://www.youtube.com/watch?v=8ZI-8Q2j...

reda salut - Reply

You need to remove the battery, hard drive, and UltraDrive before starting step 1.

cak - Reply

If there's extra RAM under the cover, remove it by spreading the retaining clips.

cak - Reply