This battery fits these products: Sony Vaio VPCW Series, VPCW111XX/P, VPCW111XX/PC, VPCW111XX/T, VPCW111XX/W, VPCW111XXP, VPCW111XXT, VPCW111XXW, VPCW115XG, VPCW115XGP, VPCW115XW/P, VPCW115XW/T, VPCW115XW/W, VPCW117XC/P This battery replaces these OEM batteries: Sony VGP-BPS18