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  1. Lenovo ThinkPad T480 CMOS Battery Replacement, External Battery: step 1, image 1 of 2 Lenovo ThinkPad T480 CMOS Battery Replacement, External Battery: step 1, image 2 of 2
    • Disable the battery, power down, and unplug your device before you begin.

    • Flip the laptop over so the bottom of the device is showing.

  2. Lenovo ThinkPad T480 CMOS Battery Replacement: step 2, image 1 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 2, image 2 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 2, image 3 of 3
    • Using your fingers, slide the lock on each side of the battery to the unlocked position.

    • Remove the battery from the slot.

  3. Lenovo ThinkPad T480 CMOS Battery Replacement, Back Cover: step 3, image 1 of 2 Lenovo ThinkPad T480 CMOS Battery Replacement, Back Cover: step 3, image 2 of 2
    • Using the Phillips #1 screwdriver, loosen the six captive screws.

  4. Lenovo ThinkPad T480 CMOS Battery Replacement: step 4, image 1 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 4, image 2 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 4, image 3 of 3
    • Insert the blue plastic opening tool into the space between the lower case and the chassis.

    • Slide the opening tool around the perimeter of the case to release the clips holding the case and the chassis together.

    • Remove the back case.

  5. Lenovo ThinkPad T480 CMOS Battery Replacement, Internal Battery: step 5, image 1 of 2 Lenovo ThinkPad T480 CMOS Battery Replacement, Internal Battery: step 5, image 2 of 2
    • Using the Phillips #1 screwdriver, remove the two 4.6 mm screws securing the internal battery to the frame.

  6. Lenovo ThinkPad T480 CMOS Battery Replacement: step 6, image 1 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 6, image 2 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 6, image 3 of 3
    • Use the spudger to slide the battery socket connector parallel to the motherboard and out of its socket on the motherboard.

  7. Lenovo ThinkPad T480 CMOS Battery Replacement: step 7, image 1 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 7, image 2 of 3 Lenovo ThinkPad T480 CMOS Battery Replacement: step 7, image 3 of 3
    • Using the black nylon spudger, wedge the battery up from the case and lift it out.

  8. Lenovo ThinkPad T480 CMOS Battery Replacement, CMOS Battery: step 8, image 1 of 2 Lenovo ThinkPad T480 CMOS Battery Replacement, CMOS Battery: step 8, image 2 of 2
    • Using an IC extractor or black nylon spudger, unplug the connector from the socket on the motherboard.

    • This connector may be very difficult to remove and is easily damaged. Be careful that you don't damage the port when removing the coin cell battery connector.

  9. Lenovo ThinkPad T480 CMOS Battery Replacement: step 9, image 1 of 2 Lenovo ThinkPad T480 CMOS Battery Replacement: step 9, image 2 of 2
    • Using the black nylon spudger, pry the coin cell battery off of the motherboard.

    • The coin cell battery is stuck to the board with a light adhesive.

Заключение

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

Sarah Westberg

Участник с: 11.03.2019

16 821 Репутация

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