Specification: Battery type:Li-ion Voltage:15.36V Capacity:51Wh Cells：4cell recharge cycles：500 Operation time: Around 2-3hours Replacement for Part Number： L18C4P71 L18L4P71 L18M4P72 02DL006 02DL005 02DL004 SB10K97644 SB10K97642 SB10K97643 5B10W13930 5B10W13931 5B10W13932 SB10T83173 SB10T83174. Compatible Models: Lenovo ThinkPad X1 Yoga 4th Gen (X1 Yoga 2019 Gen) Series Lenovo ThinkPad X1 Yoga 5th Gen (X1 Yoga 2020 Gen) Series Lenovo ThinkPad X1 Carbon 7th Gen (X1 Carbon 2019 Gen) Series Lenovo ThinkPad X1 Carbon 8th Gen (X1 Carbon 2020 Gen) Series.
