Home laptop battery sony VAIO VGN-BX640 Series batteries Compatible Laptop Battery for sony VAIO VGN BX640 Series Click to enlarge Find other parts of your sony VAIO VGN-BX640 Series Code:1 Special price: $AUD Number: Brand new product with 1 year warranty! This VAIO VGN-BX640 Series batteries replaces: This VAIO VGN-BX640 Series batteries is compatible with the following models: