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Amazon.com: Rome Tech CMOS Battery for IBM Lenovo ThinkPad X1 Carbon 2-nd Carbon 3rd Carbon 4th Carbon 5th Carbon 6th Thinkpad S3 Yoga 14 - BIOS RTC 3V CR2016 X1 Carbon CMOS
How to replace CMOS battery on my ThinkPad X1 2nd gen? - Lenovo ThinkPad X1 Carbon (2nd Gen) - iFixit
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Amazon.com: Rome Tech CMOS Battery for IBM Lenovo ThinkPad X1 Carbon 2-nd Carbon 3rd Carbon 4th Carbon 5th Carbon 6th Thinkpad S3 Yoga 14 - BIOS RTC 3V CR2016 X1 Carbon CMOS
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