Tech Specs Generic 15.36V, 51Wh Original Part Numbers 02DL004, 02DL005, 02DL006 L18C4P71, L18L4P71, L18M4P72 SB10K97642, SB10K97643, SB10K97644 Suitable Models ThinkPad X1 CARBON 2019, ThinkPad X1 CARBON 7TH GEN, ThinkPad X1 CARBON 7TH GEN (20QD002YGE) ThinkPad X1 CARBON 7TH GEN (20QD003EGE), ThinkPad X1 CARBON 7TH GEN (20QD003HGE), ThinkPad X1 CARBON 7TH GEN (20QD003JGE) ThinkPad X1 CARBON 7TH GEN (20QD00L7GE), ThinkPad X1 CARBON 7TH GEN-20QE, ThinkPad X1 YOGA 2019 ThinkPad X1 YOGA 4TH GEN (20QF001WGE), ThinkPad X1 YOGA 4TH GEN (20QF0022GE), ThinkPad X1 YOGA 4TH GEN (20QF0024GE) ThinkPad X1 YOGA 4TH GEN (20QF00AYGE), ThinkPad X1 YOGA 4TH GEN-20QF, ThinkPad X1 YOGA 4TH GEN-20QG, ThinkPad X1 YOGA GEN 4.