Replacement lithium ion battery for TOSHIBA Portege A30-C; Satellite Pro R50-B, R50-C; Tecra A40-C, A50-C, C50-C; replaces PA5212U-1BRS, PABAS283 4 Cells Specs: 14.4V, 2800mAh, 40Wh Warranty: 18 months from date of purchase