Specification: Replacement PCGA-BP2NX Battery (4400MAH 14.8V 8 Cells Li-Ion) for Sony VAIO VGN-K30B VGN-K31B VGN-K50B VGN-K70B VGN-K71B
Compatible with following laptops:Sony VAIO
VGN-K30 VGN-K30B VGN-K31 VGN-K31B VGN-K50B VGN-K70B VGN-K71B