Genuine Original Sony VAIO PCG-4N VGN-TZ1 Series 10.8V 5800mAh Li-ion Laptop Rechargeable Battery Pack VGP-BPL11 3-099-698-02 3-208-782-02.
Model Number: VGP-BPL11
Sony Part Number: 3-099-698-02 309969802
Compatible Part Numbers: 3-208-782-02 320878202
Compatible Models: Sony VAIO PCG-4N VGN-TZ1 Series