Lenovo Part
01LW420
is compatible in the following Models:
Lenovo ThinkPad Edge laptops
E580 (Type 20KS 20KT) Laptop (ThinkPad) - 20KSA019CD
E580 (Type 20KS 20KT) Laptop (ThinkPad) - 20KSCT01WW
E580 (Type 20KS 20KT) Laptop (ThinkPad) - 20KSCTO1WW
E590 (Type 20NB, 20NC) Laptop (ThinkPad) - 20NBCTO1WW