Laptop Battery for SONY VAIO VGN-FZ series, PN: VGP-BPL8, VGP-BPS8, VGP-BPL8A, VGP-BPS8A, VGP-BPS8B (Silver):Replacement Laptop Battery for Sony VGN-FZ series. Compatible Part Numbers: VGP-BPL8, VGP-BPL8A, VGP-BPS8, VGP-BPS8A, VGP-BPS8B Li-ion, 11.1v 5200mAh Color: Silver