There is no battery on the motherboard when it leaves the factory.
Lenovo ThinkPad X1 Carbon 9th Gen Motherboard i7-1185G7 32GB MEMORY 5B21K93298
CMOS RTC Battery For Lenovo ThinkPad X1 Carbon 6th Gen CR2016 01HY008 SB10L70751
Lenovo ThinkPad X1 Carbon 8th Gen. Core i5-10210U 1.60 GHz 8 GB DDR4 Motherboard
Lenovo Thinkpad X1 Carbon 6th Gen I7-8650U 16G Motherboard NM-B481 01YR217
98%NEW Lenovo Thinkpad X1 Carbon 6th Gen I7-8650U 16G Motherboard 8G 16G NM-B481
Lenovo ThinkPad X1 Carbon 7th Gen 14" Intel i7-8665U 16GB Motherboard 20W47873
