For Portege Z935 Series. For Portege Z930 Series. For Portege Z830 Series. For Portege Z835 Series. For Toshiba. Battery Type : Li-ion. 1.Li-Ion Laptop Battery 10.8V and 11.1V are in common use. 2.Li-Ion Laptop Battery 14.4V and 14.8V are in common use.