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.
L20D3PF0
L17L3PB0
L19M4PG0
L14M3P21
L18M4PF0
5B10H11758
L17M3PG1
42T4940
121500240
01AV403
00HW034