For original brand laptop:
Sony Vaio PCG-481N
Sony Vaio PCG-TR Series
PCG-TR1, PCG-TR1A, PCG-TR1AP,
PCG-TR1/B, PCG-TR1C, PCG-TR1MP,
PCG-TR1/P, PCG-TR2, PCG-TR2A,
PCG-TR2AP1, PCG-TR2AP3, PCG-TR2/B,
PCG-TR2C, PCG-TR2E, PCG-TR2MP,
PCG-TR2/P, PCG-TR3, PCG-TR3A,
PCG-TR3AP1, PCG-TR3AP2, PCG-TR3AP3,
PCG-TR3/B, PCG-TR3CN, PCG-TR3E/B,
PCG-TR3/P, PCG-TR3/S, PCG-TR3/SP,
PCG-TR5AP, PCG-TR5B, PCG-TR5C,
PCG-TR5EB, PCG-TR5GP, PCG-TR5MP,
PCG-TR5PS, PCG-TR5S, PCG-TR5ZC

Replacement original battery model:
PCGA-BP2T

Battery Type: Li-ion
voltage:11.1V
Color:Silver
Capacity:4400mAH
Dimension:204.00 x 51.30 x 19.50 mm
Import cells
No memory effect
Both OEM and ODM are welcomed
Guarantee: 3-12months