UBatteries Laptop Battery Toshiba Satellite C850-B910 - 6600mAh, 9 Cell UBatteries Li-Ion Replacement Laptop Battery; Grade A Cell Type: 9 Cell Lithium-Ion | Voltage: 10.8V | Capacity: 6600mAh | Rating: 71Whr One Year Warranty, 30 Days Return CE ROHS Certified