Lenovo ThinkPad T480 CMOS Battery Replacement

はじめに

If the coin cell or CMOS battery of your Lenovo ThinkPad T480 begins to fail, follow this guide to replace it.

The CMOS or coin cell battery provides power to the CMOS (complementary metal oxide semiconductor) chip. Some signs of CMOS battery failure include: settings in the computer setup changing, the clock resetting, “Booting Error” messages, the laptop running slowly, or the laptop shutting down.

Prior to beginning this repair, be sure to disable the internal battery, shut down the laptop, and disconnect from the external power source.

必要な工具と部品

手順1 External Battery

Lenovo ThinkPad T480 CMOS Battery Replacement, External Battery: 手順 1、 2の画像 1

Lenovo ThinkPad T480 CMOS Battery Replacement, External Battery: 手順 1、 2の画像 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.

編集

手順2

Lenovo ThinkPad T480 CMOS Battery Replacement: 手順 2、 3の画像 3

Using your fingers, slide the lock on each side of the battery to the unlocked position.
Remove the battery from the slot.

編集

手順3 Back Cover

Lenovo ThinkPad T480 CMOS Battery Replacement, Back Cover: 手順 3、 2の画像 1

Lenovo ThinkPad T480 CMOS Battery Replacement, Back Cover: 手順 3、 2の画像 2

Using the Phillips #1 screwdriver, loosen the six captive screws.

編集

手順4

Lenovo ThinkPad T480 CMOS Battery Replacement: 手順 4、 3の画像 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.
If it feels like the battery well portion of the back cover isn't loose, these clips may be holding the cover to the laptop. Use your opening tool to pry the clips loose and try removing the cover again.
Remove the back case.

編集

手順5 Internal Battery

Lenovo ThinkPad T480 CMOS Battery Replacement, Internal Battery: 手順 5、 2の画像 1

Lenovo ThinkPad T480 CMOS Battery Replacement, Internal Battery: 手順 5、 2の画像 2

Using the Phillips #1 screwdriver, remove the two 4.6 mm screws securing the internal battery to the frame.

編集

手順6

Lenovo ThinkPad T480 CMOS Battery Replacement: 手順 6、 3の画像 3

Use the spudger to slide the battery socket connector parallel to the motherboard and out of its socket on the motherboard.

編集

手順7

Lenovo ThinkPad T480 CMOS Battery Replacement: 手順 7、 3の画像 3

Using the black nylon spudger, wedge the battery up from the case and lift it out.

編集

手順8 CMOS Battery

Lenovo ThinkPad T480 CMOS Battery Replacement, CMOS Battery: 手順 8、 2の画像 1

Lenovo ThinkPad T480 CMOS Battery Replacement, CMOS Battery: 手順 8、 2の画像 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.

編集