Hiport Laptop Battery For Toshiba P305-S8857/AB Laptop Notebook Computers Cells: 9 Cells Volts: 10.8V Capacity: 6600mAh; 71Wh Type: This item is an extended capacity 9 cell battery. This battery is physically larger than batteries with fewer cells and may stick out from your computer when installed. Please compare the ratings to determine if this battery is different from your current battery.