This PCG-41218L battery is also compatible with the Sony battery part number BPS24 as well as several VPC- SA, SB, SC, SD, SE SVS and PCG 1-999 laptop models.
The higher quality Samsung lithium-ion cells inside the battery will provide longer run times between charges as well as a longer service life than cheaper batteries. Every Sony PCG-41218L battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.
You can expect about 3 - 4 hours of run time with this Vaio PCG 41218L battery when new, depending on your energy use. You can get even longer battery life by dimming your screen brightness and closing unused applications.