Premium Power Products compatible laptop battery for Sony Vaio B, V505, & Z1 series.Also works with PCG-V505 Series, PCG-V505AXP, PCG-V505BX, PCG-V505BXP, PCG-V505DC1, PCG-V505DC11, PCG-V505DC1P7, PCG-V505DX, PCG-V505DXP, PCG-V505EC Series, PCG-V505EX, PCG-V505EXP, PCG-Z1A, PCG-Z1A1, PCG-Z1AP1, PCG-Z1AP2, PCG-Z1AP3, PCG-Z1RA, PCG-Z1RAP1, PCG-Z1RAP2, PCG-Z1RAP3, PCG-Z1VA, PCG-Z1VAP1, PCG-Z1VAP2, PCG-Z1WA, PCG-Z1WAMP1, PCG-Z1WAMP2, PCG-Z1WAMP3, PCG-Z1WAP, PCGZ1RAP1KITB, PCGZ1VAP1KITB, PCGZ1VAP2KITB, V505A Series, V505B Series, VGN-B100B05, VGN-B100B07, Z1 Series. Fits with compatible part number: PCGA-BP2V.