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IBM ThinkPad T41 CMOS Battery Replacement

Introduction

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!

What you need

  1. IBM ThinkPad T41 CMOS Battery Replacement, Keyboard: step 1, image 1 of 1

    • 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

  2. IBM ThinkPad T41 CMOS Battery Replacement: step 2, image 1 of 1

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

    Edit

  3. IBM ThinkPad T41 CMOS Battery Replacement: step 3, image 1 of 1

    • 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

  4. IBM ThinkPad T41 CMOS Battery Replacement: step 4, image 1 of 1

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

    • Remove the keyboard.

    Edit

  6. IBM ThinkPad T41 CMOS Battery Replacement, Trackpad: step 5, image 1 of 1

    • 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

  7. IBM ThinkPad T41 CMOS Battery Replacement: step 6, image 1 of 1

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

    Edit

  8. IBM ThinkPad T41 CMOS Battery Replacement: step 7, image 1 of 1

    • 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

  9. IBM ThinkPad T41 CMOS Battery Replacement: step 8, image 1 of 1

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

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  10. IBM ThinkPad T41 CMOS Battery Replacement, CMOS Battery: step 9, image 1 of 1

    • Lift the yellow plastic-covered battery up.

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  11. IBM ThinkPad T41 CMOS Battery Replacement: step 10, image 1 of 1

    • Unplug the battery connector.

    Edit
Conclusion

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

18 other people completed this guide.

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Marissa Blustein

Member since: 04/16/10

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Cal Poly, Team 7-8, Maness Spring 2010 Member of Cal Poly, Team 7-8, Maness Spring 2010

CPSU-MANESS-S10S7G8

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5 Comments

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

Is there a quicker way to get to the CMOS battery interface? What alternate step could be used when using a CMOS AAA battery replacement instead? If possible, send me an email in response to this comment. Thanks in advance.

Jim Farrell - Reply

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