Capacity: 45WH/2800MAH Cell: 4-Cell Voltage: 14.8V Battery type: Li-ion Replace Part Number: PA5212U-1BRS Compatible Models: For Toshiba Satellite Pro: A40, A50, R40, R50 Searies, Toshiba Tecra: A40, A40-C, A50-C, C40, C50, C50-B, Z50, Z50-C Series 100% NEW from manufacturer; Grade A cells ensure fast charges, low power consumption Tinkerpal Warranty:30 day refund, 12 month warranty (send a new replacement battery). If you have any questions, please contact us and we will reply by email within 24 hours.