Batterytec&reg; Laptop Battery for TOSHIBA PA3788U-1BRS PA3786U-1BRS PA3787U-1BRS PA3788U-1BRS PABAS221 PABAS222 PABAS223,TOSHIBA Tecra A11 M11 S11, Toshiba Dynabook Satellite PB551, Toshiba Satellite Pro S500. [10.8V 4400mAh 1 Year Warranty] Battery Type: Li-ion, Cells: 6-cell,Capacity: 4400mAh; Voltage: 10.8V. 100% New Manufacturer. To 500 charging cycles during the lifetime of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 12 months Warranty without problems. Class A cells provide fast loads and low power consumption, chip protection offers both security and stability.