There is no battery on the motherboard when it leaves the factory.
CMOS RTC Battery For Lenovo ThinkPad X1 Carbon 1st 2nd 3rd / 4th to 9th Gen
DLZP5 LA-F661P 5B20Q96463 For Lenovo Yoga 730-15IKB Motherboard I7-8550U GTX1050
Laptop Motherboard For Lenovo ThinkPad T480 i5-8350U UMA 01YR336 01YU859
5B21H47052 for Lenovo ThinkPad T14 T15 Gen 2 Motherboard I7-1165G7 5B21M82579
5B21C99669 For Lenovo 500e Chromebook Gen 3 Motherboard N5100 4G 32G OEM
5B20Z48275 For Lenovo ThinkPad L13 Yoga Gen 2 Motherboard i5-1135G7 4+4G OEM
