Lenovo/IBM Battery Part Number Identification
Lenovo and IBM are the same company.
Essential to the purchase of your new laptop battery is the part number. A part number is a unique identifier that is assigned to a part to simplify referencing and to unambiguously define a part within a single manufacturer. Knowing about part number of the battery will more accessible to buy a correct battery, and it is comparatively accurate to search a battery by its part number than the model name of laptop.
Examples of Lenovo part numbers:
L08S6D13
45N1001
OA36302
Examples of IBM part numbers:
FRU 02K6928
ASM 92P1138
02K6824